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BOSTON MARATHON 2026

Iris Nasky

WA

Bib: 7437 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 18%
Gender (Female)
#0 / 12578
Top 4%
Masters (Masters Women)
#0 / 6862
Top 0.7%
Division (F50-54)
#0 / 1233
Top 0.3%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:48/mi
21:06
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:49/mi
42:14
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:50/mi
1:03:27
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:48/mi
1:24:32
↑ 106↓ 860.1%
165 ft elev
HALF· 13.11 mi
6:44/mi
1:29:07
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:49/mi
1:45:37
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:49/mi
2:06:47
↑ 181↓ 1480.2%
138 ft elev
20M
6:50/mi
2:16:03
↑ 64↓ 500.2%
148 ft elev
21M
7:04/mi
2:23:07
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:28/mi
2:27:57
↑ 17↓ 861.7%
156 ft elev
23M
6:46/mi
2:36:24
↑ 23↓ 630.6%
116 ft elev
24M
6:36/mi
2:43:00
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:45/mi
2:48:46
↓ 200.3%
20 ft elev
25.2M
7:21/mi
2:51:18
↑ 13↓ 160.2%
18 ft elev
FINISH· 26.22 mi
6:35/mi
2:58:00
↑ 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
1:29:076:48 /mi⚖️ balanced
2nd Half
1:28:536:47 /mi⚖️ balanced
Even split — consistent pacing between halves
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:5621:066:4821:06
6:48
-
10K
6.21 mi10:48:0442:146:4821:08
6:49
+0:01
15K
9.32 mi11:09:171:03:276:4921:13
6:50
+0:01
20K
12.43 mi11:30:221:24:326:4921:05
6:48
-0:02
HALF
13.11 mi11:34:571:29:076:484:35
6:44
-0:04
25K
15.53 mi11:51:271:45:376:4816:30
6:49
+0:05
30K
18.64 mi12:12:372:06:476:4921:10
6:49
0:00
20M
20.00 mi12:21:532:16:036:499:16
6:50
+0:01
21M
21.00 mi12:28:572:23:076:497:04
7:04
+0:14
35K
21.75 mi12:33:472:27:576:494:50
6:28
-0:36
23M
23.00 mi12:42:142:36:246:498:27
6:46
+0:18
24M
24.00 mi12:48:502:43:006:486:36
6:36
-0:10
40K
24.85 mi12:54:362:48:466:485:46
6:45
+0:09
25.2M
25.20 mi12:57:082:51:186:482:32
7:21
+0:36
FINISH
26.22 mi13:03:502:58:006:486:42
6:35
-0:46

Checkpoints & Pacing

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

6:28 /mi

Average Pace

6:48 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:55:28

99% of race

Time at Steady Pace

2:32

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:26:5621:066:4821:06
6:48
#6803
10K
6.21 mi10:48:0442:146:4821:08
6:49
#6853
15K
9.32 mi11:09:171:03:276:4921:13
6:50
#6918
20K
12.43 mi11:30:221:24:326:4921:05
6:48
#6642
HALF
13.11 mi11:34:571:29:076:484:35
6:44
#6620
25K
15.53 mi11:51:271:45:376:4816:30
6:49
#6483
30K
18.64 mi12:12:372:06:476:4921:10
6:49
#6032
20M
20.00 mi12:21:532:16:036:499:16
6:50
#5868
21M
21.00 mi12:28:572:23:076:497:04
7:04
#5706
35K
21.75 mi12:33:472:27:576:494:50
6:28
#5572
23M
23.00 mi12:42:142:36:246:498:27
6:46
#5420
24M
24.00 mi12:48:502:43:006:486:36
6:36
#5304
40K
24.85 mi12:54:362:48:466:485:46
6:45
#5211
25.2M
25.20 mi12:57:082:51:186:482:32
7:21
#5173
FINISH
26.22 mi13:03:502:58:006:486:42
6:35
#5117
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi68037107107119834834
10K6.21 mi3.10 mi6853-50726-16726-167019791791
15K9.32 mi3.11 mi6918-65762-36762-367119834834
20K12.43 mi3.11 mi6642+276692+70692+706079601601
HALF13.11 mi0.68 mi6620+22681+11681+116465657657
25K15.53 mi2.42 mi6483+137664+17664+175857585585
30K18.64 mi3.11 mi6032+451578+86578+864490365365
20M20.00 mi1.36 mi5868+164552+26552+264346388388
21M21.00 mi1.00 mi5706+162526+26526+263872359359
35K21.75 mi0.75 mi5572+134506+20506+203409255255
23M23.00 mi1.25 mi5420+152485+21485+213821369369
24M24.00 mi1.00 mi5304+116465+20465+203795378378
40K24.85 mi0.85 mi5211+93457+8457+83917447447
25.2M25.20 mi0.35 mi5173+38454+3454+34417612612
FINISH26.22 mi1.02 mi5117+56459-5459-54646690690

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21story building
+97ft-345ft

Overall

7119

Females

834

F50-54

834

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

7019

Females

791

F50-54

791

10K→15K

6.2 - 9.3 mi

Top 25%
×3story building
+67ft-78ft

Overall

7119

Females

834

F50-54

834

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

6079

Females

601

F50-54

601

20K→HALF

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

6465

Females

657

F50-54

657

HALF→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5857

Females

585

F50-54

585

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

4490

Females

365

F50-54

365

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4346

Females

388

F50-54

388

20M→21M

20.0 - 21.0 mi

Top 13%
×8story building
+106ft-24ft

Overall

3872

Females

359

F50-54

359

21M→35K

21.0 - 21.8 mi

Top 12%
×7story building
+17ft-86ft

Overall

3409

Females

255

F50-54

255

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3821

Females

369

F50-54

369

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3795

Females

378

F50-54

378

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3917

Females

447

F50-54

447

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4417

Females

612

F50-54

612

25.2M→FINISH

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4646

Females

690

F50-54

690

Passing Analysis

Category:
Athletes Passed
2269
Passed By
583
Net Change
+1686
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6803
5K → 10K191241-50#6803#6853
10K → 15K110175-65#6853#6918
15K → 20K30125+276#6918#6642
20K → HALF3412+22#6642#6620
HALF → 25K17235+137#6620#6483
25K → 30K4543+451#6483#6032
30K → 20M1728+164#6032#5868
20M → 21M1708+162#5868#5706
21M → 35K1362+134#5706#5572
35K → 23M1564+152#5572#5420
23M → 24M12711+116#5420#5304
24M → 40K10916+93#5304#5211
40K → 25.2M479+38#5211#5173
25.2M → FINISH9034+56#5173#5117
TOTALS2269583+1686

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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OTQ

Olympic Trials Qualifying analysis available

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