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BOSTON MARATHON 2025

Molly Cohen

NY

Bib: 21825 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 50%
Masters (Masters Women)
#0 / 6759
Top 38%
Division (F45-49)
#0 / 1813
Top 48%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:06/mi
25:10
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:13/mi
50:41
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:26/mi
1:16:52
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:37/mi
1:43:37
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:30/mi
1:49:25
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:38/mi
2:10:20
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:58/mi
2:38:13
↑ 181↓ 1480.2%
138 ft elev
20M
9:06/mi
2:50:35
↑ 64↓ 500.2%
148 ft elev
21M
9:35/mi
3:00:10
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:21/mi
3:06:25
↑ 17↓ 861.7%
156 ft elev
23M
8:52/mi
3:17:31
↑ 23↓ 630.6%
116 ft elev
24M
8:35/mi
3:26:06
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:35/mi
3:33:26
↓ 200.3%
20 ft elev
25.2M
9:05/mi
3:36:34
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:06/mi
3:44:49
↑ 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
1:49:258:21 /mi⚡ faster
2nd Half
1:55:248:48 /mi+5.5%
Positive split — 5.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0925:108:0625:10
8:06
-
10K
6.21 mi11:46:4050:418:0925:31
8:13
+0:07
15K
9.32 mi12:12:511:16:528:1526:11
8:26
+0:13
20K
12.43 mi12:39:361:43:378:2026:45
8:37
+0:11
Half
13.11 mi12:45:241:49:258:215:48
8:30
-0:07
25K
15.53 mi13:06:192:10:208:2320:55
8:38
+0:08
30K
18.64 mi13:34:122:38:138:2927:53
8:58
+0:20
20M
20.00 mi13:46:342:50:358:3212:22
9:06
+0:08
21M
21.00 mi13:56:093:00:108:359:35
9:35
+0:29
35K
21.75 mi14:02:243:06:258:346:15
8:21
-1:14
23M
23.00 mi14:13:303:17:318:3511:06
8:52
+0:31
24M
24.00 mi14:22:053:26:068:358:35
8:35
-0:17
40K
24.85 mi14:29:253:33:268:357:20
8:35
0:00
25.2M
25.20 mi14:32:333:36:348:363:08
9:05
+0:30
Finish
26.22 mi14:40:483:44:498:358:15
8:06
-0:59

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

8:06 /mi

Average Pace

8:35 /mi

Slowest Pace

9:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:51:51

76% of race

Time at Steady Pace

43:23

19% of race

Time at Slower Pace

9:35

4% of race

Average Pace: 8:34 /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 mi11:21:0925:108:0625:10
8:06
#17360
10K
6.21 mi11:46:4050:418:0925:31
8:13
#17673
15K
9.32 mi12:12:511:16:528:1526:11
8:26
#18083
20K
12.43 mi12:39:361:43:378:2026:45
8:37
#18237
Half
13.11 mi12:45:241:49:258:215:48
8:30
#18283
25K
15.53 mi13:06:192:10:208:2320:55
8:38
#18206
30K
18.64 mi13:34:122:38:138:2927:53
8:58
#18019
20M
20.00 mi13:46:342:50:358:3212:22
9:06
#17956
21M
21.00 mi13:56:093:00:108:359:35
9:35
#17892
35K
21.75 mi14:02:243:06:258:346:15
8:21
#17744
23M
23.00 mi14:13:303:17:318:3511:06
8:52
#17584
24M
24.00 mi14:22:053:26:068:358:35
8:35
#17462
40K
24.85 mi14:29:253:33:268:357:20
8:35
#17319
25.2M
25.20 mi14:32:333:36:348:363:08
9:05
#17243
Finish
26.22 mi14:40:483:44:498:358:15
8:06
#17082
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi17360594959491887368236823
10K6.21 mi3.10 mi17673-3136136-1876136-1871798662806280
15K9.32 mi3.11 mi18083-4106378-2426378-2421887368236823
20K12.43 mi3.11 mi18237-1546480-1026480-1021891368656865
Half13.11 mi0.68 mi18283-466507-276507-271921970107010
25K15.53 mi2.42 mi18206+776476+316476+311796564066406
30K18.64 mi3.11 mi18019+1876408+686408+681756063406340
20M20.00 mi1.36 mi17956+636395+136395+131732263196319
21M21.00 mi1.00 mi17892+646371+246371+241647859665966
35K21.75 mi0.75 mi17744+1486304+676304+671466350665066
23M23.00 mi1.25 mi17584+1606270+346270+341551056125612
24M24.00 mi1.00 mi17462+1226224+466224+461510054415441
40K24.85 mi0.85 mi17319+1436166+586166+581396949554955
25.2M25.20 mi0.35 mi17243+766139+276139+271242042194219
Finish26.22 mi1.02 mi17082+1616063+766063+761360347614761

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18873

Females

6823

F45-49

6823

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17986

Females

6280

F45-49

6280

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18873

Females

6823

F45-49

6823

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

18913

Females

6865

F45-49

6865

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19219

Females

7010

F45-49

7010

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

17965

Females

6406

F45-49

6406

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17560

Females

6340

F45-49

6340

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

17322

Females

6319

F45-49

6319

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16478

Females

5966

F45-49

5966

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14663

Females

5066

F45-49

5066

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15510

Females

5612

F45-49

5612

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

15100

Females

5441

F45-49

5441

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13969

Females

4955

F45-49

4955

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12420

Females

4219

F45-49

4219

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

13603

Females

4761

F45-49

4761

Passing Analysis

Category:
Athletes Passed
2118
Passed By
1840
Net Change
+278
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17360
5K → 10K164477-313#17360#17673
10K → 15K84494-410#17673#18083
15K → 20K141295-154#18083#18237
20K → Half2470-46#18237#18283
Half → 25K201124+77#18283#18206
25K → 30K332145+187#18206#18019
30K → 20M14986+63#18019#17956
20M → 21M12965+64#17956#17892
21M → 35K1557+148#17892#17744
35K → 23M19333+160#17744#17584
23M → 24M14321+122#17584#17462
24M → 40K15512+143#17462#17319
40K → 25.2M826+76#17319#17243
25.2M → Finish1665+161#17243#17082
TOTALS21181840+278

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing