Gwen Jacobson

Bib: 16676FAge: N/A

MN

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 42%
Gender (Female)
#0 / 12578
Top 27%
Masters (Masters Women)
#0 / 6862
Top 11%
Age Group (F65-69)
#0 / 273
Top 1%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
22:57
3.11 mi
Rank: #11848
Start5K
22:57 | 7:24/mi
10K
45:59
6.21 mi
Rank: #11998 (-150)
5K10K
23:02 | 7:25/mi
15K
1:09:23
9.32 mi
Rank: #12318 (-320)
10K15K
23:24 | 7:32/mi
20K
1:33:13
12.43 mi
Rank: #12606 (-288)
15K20K
23:50 | 7:41/mi
HALF
1:38:21
13.11 mi
Rank: #12632 (-26)
20KHALF
5:08 | 7:32/mi
25K
1:57:11
15.53 mi
Rank: #12785 (-153)
HALF25K
18:50 | 7:46/mi
30K
2:22:02
18.64 mi
Rank: #12868 (-83)
25K30K
24:51 | 8:00/mi
20M
2:32:59
20.00 mi
Rank: #12868
30K20M
10:57 | 8:04/mi
21M
2:41:13
21.00 mi
Rank: #12776 (+92)
20M21M
8:14 | 8:14/mi
35K
2:46:59
21.75 mi
Rank: #12750 (+26)
21M35K
5:46 | 7:43/mi
23M
2:56:47
23.00 mi
Rank: #12629 (+121)
35K23M
9:48 | 7:50/mi
24M
3:04:15
24.00 mi
Rank: #12485 (+144)
23M24M
7:28 | 7:28/mi
40K
3:10:49
24.85 mi
Rank: #12385 (+100)
24M40K
6:34 | 7:41/mi
25.2M
3:13:39
25.20 mi
Rank: #12331 (+54)
40K25.2M
2:50 | 8:13/mi
FINISH
3:21:10
26.22 mi
Rank: #12223 (+108)
25.2MFINISH
7:31 | 7:23/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:38:21
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:42:49
Pace7:51 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:1122:577:2422:57
7:24
-
10K
6.21 mi11:27:1345:597:2523:02
7:25
+0:01
15K
9.32 mi11:50:371:09:237:2723:24
7:32
+0:07
20K
12.43 mi12:14:271:33:137:3123:50
7:41
+0:09
HALF
13.11 mi12:19:351:38:217:315:08
7:32
-0:09
25K
15.53 mi12:38:251:57:117:3318:50
7:46
+0:14
30K
18.64 mi13:03:162:22:027:3824:51
8:00
+0:14
20M
20.00 mi13:14:132:32:597:3910:57
8:04
+0:04
21M
21.00 mi13:22:272:41:137:418:14
8:14
+0:10
35K
21.75 mi13:28:132:46:597:415:46
7:43
-0:31
23M
23.00 mi13:38:012:56:477:429:48
7:50
+0:07
24M
24.00 mi13:45:293:04:157:417:28
7:28
-0:22
40K
24.85 mi13:52:033:10:497:416:34
7:41
+0:13
25.2M
25.20 mi13:54:533:13:397:422:50
8:13
+0:32
FINISH
26.22 mi14:02:243:21:107:417:31
7:23
-0:50

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:23 /mi

Average Pace

7:41 /mi

Slowest Pace

8:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:10:06

94% of race

Time at Steady Pace

11:04

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:40 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:04:1122:577:2422:57
7:24
#11848
10K
6.21 mi11:27:1345:597:2523:02
7:25
#11998
15K
9.32 mi11:50:371:09:237:2723:24
7:32
#12318
20K
12.43 mi12:14:271:33:137:3123:50
7:41
#12606
HALF
13.11 mi12:19:351:38:217:315:08
7:32
#12632
25K
15.53 mi12:38:251:57:117:3318:50
7:46
#12785
30K
18.64 mi13:03:162:22:027:3824:51
8:00
#12868
20M
20.00 mi13:14:132:32:597:3910:57
8:04
#12868
21M
21.00 mi13:22:272:41:137:418:14
8:14
#12776
35K
21.75 mi13:28:132:46:597:415:46
7:43
#12750
23M
23.00 mi13:38:012:56:477:429:48
7:50
#12629
24M
24.00 mi13:45:293:04:157:417:28
7:28
#12485
40K
24.85 mi13:52:033:10:497:416:34
7:41
#12385
25.2M
25.20 mi13:54:533:13:397:422:50
8:13
#12331
FINISH
26.22 mi14:02:243:21:107:417:31
7:23
#12223
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi118482830283013105(Top 45%)3641(Top 29%)3641(Top 1334%)
10K6.21 mi3.10 mi11998-1502942-1122942-11212223(Top 42%)3087(Top 25%)3087(Top 1131%)
15K9.32 mi3.11 mi12318-3203137-1953137-19513105(Top 45%)3641(Top 29%)3641(Top 1334%)
20K12.43 mi3.11 mi12606-2883337-2003337-20013479(Top 46%)3928(Top 31%)3928(Top 1439%)
HALF13.11 mi0.68 mi12632-263352-153352-1513287(Top 46%)3732(Top 30%)3732(Top 1367%)
25K15.53 mi2.42 mi12785-1533470-1183470-11813554(Top 47%)4041(Top 32%)4041(Top 1480%)
30K18.64 mi3.11 mi12868-833579-1093579-10913472(Top 46%)4105(Top 33%)4105(Top 1504%)
20M20.00 mi1.36 mi128683608-293608-2913246(Top 46%)4072(Top 32%)4072(Top 1492%)
21M21.00 mi1.00 mi12776+923585+233585+2311444(Top 39%)3224(Top 26%)3224(Top 1181%)
35K21.75 mi0.75 mi12750+263579+63579+612400(Top 43%)3750(Top 30%)3750(Top 1374%)
23M23.00 mi1.25 mi12629+1213532+473532+4711265(Top 39%)3245(Top 26%)3245(Top 1189%)
24M24.00 mi1.00 mi12485+1443476+563476+569868(Top 34%)2616(Top 21%)2616(Top 958%)
40K24.85 mi0.85 mi12385+1003435+413435+4110210(Top 35%)2856(Top 23%)2856(Top 1046%)
25.2M25.20 mi0.35 mi12331+543417+183417+189813(Top 34%)2759(Top 22%)2759(Top 1011%)
FINISH26.22 mi1.02 mi12223+1083384+333384+3310513(Top 36%)3105(Top 25%)3105(Top 1137%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21
+97ft-345ft

Overall

13105

Females

3641

F65-69

3641

5K→10K

3.1 - 6.2 mi

Top 42%
×5
+79ft-138ft

Overall

12223

Females

3087

F65-69

3087

10K→15K

6.2 - 9.3 mi

Top 45%
×3
+67ft-78ft

Overall

13105

Females

3641

F65-69

3641

15K→20K

9.3 - 12.4 mi

Top 46%
×5
+106ft-86ft

Overall

13479

Females

3928

F65-69

3928

20K→HALF

12.4 - 13.1 mi

Top 46%
×2
+19ft-37ft

Overall

13287

Females

3732

F65-69

3732

HALF→25K

13.1 - 15.5 mi

Top 47%
×4
+66ft-88ft

Overall

13554

Females

4041

F65-69

4041

25K→30K

15.5 - 18.6 mi

Top 46%
×9
+181ft-148ft

Overall

13472

Females

4105

F65-69

4105

30K→20M

18.6 - 20.0 mi

Top 46%
×5
+64ft-50ft

Overall

13246

Females

4072

F65-69

4072

20M→21M

20.0 - 21.0 mi

Top 39%
×8
+106ft-24ft

Overall

11444

Females

3224

F65-69

3224

21M→35K

21.0 - 21.8 mi

Top 43%
×7
+17ft-86ft

Overall

12400

Females

3750

F65-69

3750

35K→23M

21.8 - 23.0 mi

Top 39%
×5
+23ft-63ft

Overall

11265

Females

3245

F65-69

3245

23M→24M

23.0 - 24.0 mi

Top 34%
×6
+12ft-82ft

Overall

9868

Females

2616

F65-69

2616

24M→40K

24.0 - 24.9 mi

Top 35%
×1
+6ft-20ft

Overall

10210

Females

2856

F65-69

2856

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1
+13ft-16ft

Overall

9813

Females

2759

F65-69

2759

25.2M→FINISH

25.2 - 26.2 mi

Top 36%
×2
+22ft-21ft

Overall

10513

Females

3105

F65-69

3105

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1541
Passed By
1319
Net Change
-375
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11848
5K10K189200-150#11848#11998
10K15K85200-320#11998#12318
15K20K82200-288#12318#12606
20KHALF1642-26#12606#12632
HALF25K88200-153#12632#12785
25K30K159200-83#12785#12868
30K20M1011010#12868#12868
20M21M12735+92#12868#12776
21M35K6135+26#12776#12750
35K23M15433+121#12750#12629
23M24M15612+144#12629#12485
24M40K12323+100#12485#12385
40K25.2M7218+54#12385#12331
25.2MFINISH12820+108#12331#12223
TOTALS15411319-375
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

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