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BOSTON MARATHON 2025

Abigail Shalgian

Bib: 30171•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:38
Rank: #24366
Start → 5K
29:38 | 9:32/mi
10K· 6.21 mi
58:42
Rank: #24030 (+336)
5K → 10K
29:04 | 9:21/mi
15K· 9.32 mi
1:27:34
Rank: #23738 (+292)
10K → 15K
28:52 | 9:17/mi
20K· 12.43 mi
1:57:01
Rank: #23520 (+218)
15K → 20K
29:27 | 9:29/mi
Half· 13.11 mi
2:03:17
Rank: #23464 (+56)
20K → Half
6:16 | 9:11/mi
25K· 15.53 mi
2:28:08
Rank: #23525 (-61)
Half → 25K
24:51 | 10:15/mi
30K· 18.64 mi
2:59:43
Rank: #23219 (+306)
25K → 30K
31:35 | 10:10/mi
20M
3:14:02
Rank: #23159 (+60)
30K → 20M
14:19 | 10:32/mi
21M
3:25:48
Rank: #23144 (+15)
20M → 21M
11:46 | 11:46/mi
35K· 21.75 mi
3:35:41
Rank: #23396 (-252)
21M → 35K
9:53 | 13:13/mi
23M
3:48:54
Rank: #23343 (+53)
35K → 23M
13:13 | 10:33/mi
24M
3:59:06
Rank: #23267 (+76)
23M → 24M
10:12 | 10:12/mi
40K· 24.85 mi
4:08:02
Rank: #23199 (+68)
24M → 40K
8:56 | 10:27/mi
25.2M
4:11:59
Rank: #23182 (+17)
40K → 25.2M
3:57 | 11:27/mi
Finish· 26.22 mi
4:21:55
Rank: #23152 (+30)
25.2M → Finish
9:56 | 9:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:17
Pace9:24 /mi
2nd Half
Distance13.11 mi
Time2:18:38
Pace10:35 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2929:389:3229:38
9:32
-
10K
6.21 mi12:20:3358:429:2729:04
9:21
-0:11
15K
9.32 mi12:49:251:27:349:2428:52
9:17
-0:04
20K
12.43 mi13:18:521:57:019:2529:27
9:29
+0:12
Half
13.11 mi13:25:082:03:179:246:16
9:11
-0:18
25K
15.53 mi13:49:592:28:089:3224:51
10:15
+1:04
30K
18.64 mi14:21:342:59:439:3831:35
10:10
-0:05
20M
20.00 mi14:35:533:14:029:4214:19
10:32
+0:22
21M
21.00 mi14:47:393:25:489:4811:46
11:46
+1:14
35K
21.75 mi14:57:323:35:419:559:53
13:13
+1:27
23M
23.00 mi15:10:453:48:549:5713:13
10:33
-2:40
24M
24.00 mi15:20:573:59:069:5810:12
10:12
-0:21
40K
24.85 mi15:29:534:08:029:598:56
10:27
+0:15
25.2M
25.20 mi15:33:504:11:5910:003:57
11:27
+1:00
Finish
26.22 mi15:43:464:21:5510:009:56
9:45
-1:42

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

9:11 /mi

Average Pace

10:00 /mi

Slowest Pace

13:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:17

47% of race

Time at Steady Pace

1:53:02

43% of race

Time at Slower Pace

25:36

10% of race

Average Pace: 9:59 /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 mi11:51:2929:389:3229:38
9:32
#24366
10K
6.21 mi12:20:3358:429:2729:04
9:21
#24030
15K
9.32 mi12:49:251:27:349:2428:52
9:17
#23738
20K
12.43 mi13:18:521:57:019:2529:27
9:29
#23520
Half
13.11 mi13:25:082:03:179:246:16
9:11
#23464
25K
15.53 mi13:49:592:28:089:3224:51
10:15
#23525
30K
18.64 mi14:21:342:59:439:3831:35
10:10
#23219
20M
20.00 mi14:35:533:14:029:4214:19
10:32
#23159
21M
21.00 mi14:47:393:25:489:4811:46
11:46
#23144
35K
21.75 mi14:57:323:35:419:559:53
13:13
#23396
23M
23.00 mi15:10:453:48:549:5713:13
10:33
#23343
24M
24.00 mi15:20:573:59:069:5810:12
10:12
#23267
40K
24.85 mi15:29:534:08:029:598:56
10:27
#23199
25.2M
25.20 mi15:33:504:11:5910:003:57
11:27
#23182
Finish
26.22 mi15:43:464:21:5510:009:56
9:45
#23152
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi243669883988323193(Top 82%)9202(Top 75%)9202(Top 168%)
10K6.21 mi3.10 mi24030+3369702+1819702+18123709(Top 83%)9523(Top 78%)9523(Top 174%)
15K9.32 mi3.11 mi23738+2929539+1639539+16323193(Top 82%)9202(Top 75%)9202(Top 168%)
20K12.43 mi3.11 mi23520+2189414+1259414+12522841(Top 80%)9059(Top 74%)9059(Top 166%)
Half13.11 mi0.68 mi23464+569379+359379+3522576(Top 79%)8927(Top 73%)8927(Top 163%)
25K15.53 mi2.42 mi23525-619434-559434-5523832(Top 84%)9652(Top 79%)9652(Top 176%)
30K18.64 mi3.11 mi23219+3069305+1299305+12922106(Top 78%)8822(Top 72%)8822(Top 161%)
20M20.00 mi1.36 mi23159+609291+149291+1422544(Top 79%)9182(Top 75%)9182(Top 168%)
21M21.00 mi1.00 mi23144+159300-99300-923161(Top 82%)9580(Top 78%)9580(Top 175%)
35K21.75 mi0.75 mi23396-2529456-1569456-15627141(Top 96%)11657(Top 95%)11657(Top 213%)
23M23.00 mi1.25 mi23343+539443+139443+1322167(Top 78%)9155(Top 75%)9155(Top 167%)
24M24.00 mi1.00 mi23267+769430+139430+1321957(Top 77%)9113(Top 75%)9113(Top 167%)
40K24.85 mi0.85 mi23199+689416+149416+1421797(Top 77%)9094(Top 74%)9094(Top 166%)
25.2M25.20 mi0.35 mi23182+179407+99407+921970(Top 77%)9142(Top 75%)9142(Top 167%)
Finish26.22 mi1.02 mi23152+309409-29409-222109(Top 78%)9217(Top 75%)9217(Top 169%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

23193

Females

9202

F18-39

9202

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

23709

Females

9523

F18-39

9523

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

23193

Females

9202

F18-39

9202

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

22841

Females

9059

F18-39

9059

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

22576

Females

8927

F18-39

8927

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

23832

Females

9652

F18-39

9652

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

22106

Females

8822

F18-39

8822

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

22544

Females

9182

F18-39

9182

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

23161

Females

9580

F18-39

9580

21M→35K

21.0 - 21.8 mi

Top 96%
×7stories
+17ft-86ft

Overall

27141

Females

11657

F18-39

11657

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

22167

Females

9155

F18-39

9155

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

21957

Females

9113

F18-39

9113

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21797

Females

9094

F18-39

9094

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21970

Females

9142

F18-39

9142

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

22109

Females

9217

F18-39

9217

Passing Analysis

Category:
Athletes Passed
2063
Passed By
849
Net Change
+1214
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24366
5K → 10K438102+336#24366#24030
10K → 15K33139+292#24030#23738
15K → 20K25840+218#23738#23520
20K → Half648+56#23520#23464
Half → 25K108169-61#23464#23525
25K → 30K34539+306#23525#23219
30K → 20M10242+60#23219#23159
20M → 21M7156+15#23159#23144
21M → 35K7259-252#23144#23396
35K → 23M7724+53#23396#23343
23M → 24M9620+76#23343#23267
24M → 40K8113+68#23267#23199
40K → 25.2M2912+17#23199#23182
25.2M → Finish5626+30#23182#23152
TOTALS2063849+1214
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing