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BOSTON MARATHON 2023

Sara Johnson

MN

Bib: 9362 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 6%
Masters (Masters Women)
#0 / 6539
Top 2%
Division (F50-54)
#0 / 1207
Top 0.4%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:18/mi
22:40
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:12/mi
45:01
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:15/mi
1:07:32
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:17/mi
1:30:09
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:02/mi
1:34:57
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:17/mi
1:52:36
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:20/mi
2:15:22
↑ 181↓ 1480.2%
138 ft elev
20M
7:20/mi
2:25:21
↑ 64↓ 500.2%
148 ft elev
21M
7:20/mi
2:32:41
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:52/mi
2:37:49
↑ 17↓ 861.7%
156 ft elev
23M
7:17/mi
2:46:56
↑ 23↓ 630.6%
116 ft elev
24M
7:08/mi
2:54:04
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:21/mi
3:00:21
↓ 200.3%
20 ft elev
25.2M
7:32/mi
3:02:57
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:01/mi
3:10:06
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:34:577:15 /mi⚖️ balanced
2nd Half
1:35:097:16 /mi⚖️ balanced
Even split — consistent pacing between halves
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
22:407:183.11 mi22:40
7:18
-
10K
45:017:153.10 mi22:21
7:12
-0:06
15K
1:07:327:153.11 mi22:31
7:15
+0:03
20K
1:30:097:153.11 mi22:37
7:17
+0:02
Half(13.11 mi)
1:34:577:150.68 mi4:48
7:02
-0:15
25K
1:52:367:152.42 mi17:39
7:17
+0:15
30K
2:15:227:163.11 mi22:46
7:20
+0:03
20M
2:25:217:161.36 mi9:59
7:20
0:00
21M
2:32:417:161.00 mi7:20
7:20
0:00
35K
2:37:497:150.75 mi5:08
6:52
-0:28
23M
2:46:567:151.25 mi9:07
7:17
+0:25
24M
2:54:047:151.00 mi7:08
7:08
-0:09
40K
3:00:217:150.85 mi6:17
7:21
+0:13
25.2M
3:02:577:160.35 mi2:36
7:32
+0:11
Finish(26.22 mi)
3:10:067:151.02 mi7:09
7:01
-0:31
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

6:52 /mi

Average Pace

7:15 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

46:34

24% of race

Time at Steady Pace

2:23:32

76% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:15 /mi

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

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi809010461046813911151115
10K3.10 mi8076+141056-101056-10805810621062
15K3.11 mi8083-71068-121068-12813911151115
20K3.11 mi7929+1541026+421026+427635973973
Half(13.11 mi)0.68 mi7863+661004+221004+226813710710
25K2.42 mi7713+150972+32972+327167891891
30K3.11 mi7368+345882+90882+906197679679
20M1.36 mi7235+133856+26856+265863677677
21M1.00 mi6985+250794+62794+623831289289
35K0.75 mi6882+103780+14780+144618425425
23M1.25 mi6738+144761+19761+195241600600
24M1.00 mi6646+92751+10751+105399679679
40K0.85 mi6559+87744+7744+75775892892
25.2M0.35 mi6508+51738+6738+64169495495
Finish(26.22 mi)1.02 mi6443+65727+11727+115335834834

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8139

Females

1115

F50-54

1115

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8058

Females

1062

F50-54

1062

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8139

Females

1115

F50-54

1115

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

7635

Females

973

F50-54

973

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

6813

Females

710

F50-54

710

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7167

Females

891

F50-54

891

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6197

Females

679

F50-54

679

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

5863

Females

677

F50-54

677

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

3831

Females

289

F50-54

289

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4618

Females

425

F50-54

425

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5241

Females

600

F50-54

600

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5399

Females

679

F50-54

679

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5775

Females

892

F50-54

892

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4169

Females

495

F50-54

495

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5335

Females

834

F50-54

834

Passing Analysis

Category:
Passed
2160
Passed By
513
Net Change
+1647
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8090
5K → 10K243229+14#8090#8076
10K → 15K130137-7#8076#8083
15K → 20K19945+154#8083#7929
20K → Half693+66#7929#7863
Half → 25K17424+150#7863#7713
25K → 30K35914+345#7713#7368
30K → 20M1374+133#7368#7235
20M → 21M2533+250#7235#6985
21M → 35K1052+103#6985#6882
35K → 23M1528+144#6882#6738
23M → 24M997+92#6738#6646
24M → 40K10417+87#6646#6559
40K → 25.2M532+51#6559#6508
25.2M → Finish8318+65#6508#6443
TOTALS2160513+1647

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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