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BOSTON MARATHON 2025

May Lin Cooperstein

CA

Bib: 26284 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F65-69)
#0 / 222
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
11:04/mi
34:24
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
12:20/mi
1:12:43
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
13:13/mi
1:53:46
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
13:26/mi
2:35:29
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
12:08/mi
2:43:46
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
14:09/mi
3:18:04
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
14:08/mi
4:01:59
↑ 181↓ 1480.2%
138 ft elev
20M
13:54/mi
4:20:53
↑ 64↓ 500.2%
148 ft elev
21M
15:16/mi
4:36:09
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
12:53/mi
4:45:47
↑ 17↓ 861.7%
156 ft elev
23M
13:42/mi
5:02:56
↑ 23↓ 630.6%
116 ft elev
24M
13:21/mi
5:16:17
↓ 821.3%
34 ft elev
40K· 24.85 mi
14:10/mi
5:28:24
↓ 200.3%
20 ft elev
25.2M
14:44/mi
5:33:29
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
13:20/mi
5:47:04
↑ 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
2:43:4612:30 /mi⚡ faster
2nd Half
3:03:1813:59 /mi+11.9%
Positive split — 11.9% 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 mi11:49:3534:2411:0434:24
11:04
-
10K
6.21 mi12:27:541:12:4311:4238:19
12:20
+1:16
15K
9.32 mi13:08:571:53:4612:1241:03
13:13
+0:53
20K
12.43 mi13:50:402:35:2912:3141:43
13:26
+0:13
Half
13.11 mi13:58:572:43:4612:308:17
12:08
-1:18
25K
15.53 mi14:33:153:18:0412:4534:18
14:09
+2:01
30K
18.64 mi15:17:104:01:5912:5943:55
14:08
-0:01
20M
20.00 mi15:36:044:20:5313:0318:54
13:54
-0:14
21M
21.00 mi15:51:204:36:0913:0915:16
15:16
+1:22
35K
21.75 mi16:00:584:45:4713:089:38
12:53
-2:23
23M
23.00 mi16:18:075:02:5613:1017:09
13:42
+0:49
24M
24.00 mi16:31:285:16:1713:1113:21
13:21
-0:21
40K
24.85 mi16:43:355:28:2413:1312:07
14:10
+0:49
25.2M
25.20 mi16:48:405:33:2913:145:05
14:44
+0:34
Finish
26.22 mi17:02:155:47:0413:1513:35
13:20
-1:24

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

11:04 /mi

Average Pace

13:15 /mi

Slowest Pace

15:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

1:30:38

26% of race

Time at Steady Pace

2:25:45

42% of race

Time at Slower Pace

1:50:41

32% of race

Average Pace: 13:14 /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 mi11:49:3534:2411:0434:24
11:04
#27631
10K
6.21 mi12:27:541:12:4311:4238:19
12:20
#27952
15K
9.32 mi13:08:571:53:4612:1241:03
13:13
#28098
20K
12.43 mi13:50:402:35:2912:3141:43
13:26
#28110
Half
13.11 mi13:58:572:43:4612:308:17
12:08
#28088
25K
15.53 mi14:33:153:18:0412:4534:18
14:09
#28097
30K
18.64 mi15:17:104:01:5912:5943:55
14:08
#28055
20M
20.00 mi15:36:044:20:5313:0318:54
13:54
#28022
21M
21.00 mi15:51:204:36:0913:0915:16
15:16
#28014
35K
21.75 mi16:00:584:45:4713:089:38
12:53
#27983
23M
23.00 mi16:18:075:02:5613:1017:09
13:42
#27957
24M
24.00 mi16:31:285:16:1713:1113:21
13:21
#27943
40K
24.85 mi16:43:355:28:2413:1312:07
14:10
#27936
25.2M
25.20 mi16:48:405:33:2913:145:05
14:44
#27927
Finish
26.22 mi17:02:155:47:0413:1513:35
13:20
#27932
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi276311172511725282401213612136
10K6.21 mi3.10 mi27952-32111932-20711932-207281151204612046
15K9.32 mi3.11 mi28098-14612030-9812030-98282401213612136
20K12.43 mi3.11 mi28110-1212044-1412044-14280391202112021
Half13.11 mi0.68 mi28088+2212034+1012034+10275471174011740
25K15.53 mi2.42 mi28097-912039-512039-5279571198611986
30K18.64 mi3.11 mi28055+4212018+2112018+21276001183211832
20M20.00 mi1.36 mi28022+3312003+1512003+15272101166711667
21M21.00 mi1.00 mi28014+812002+112002+1273611175811758
35K21.75 mi0.75 mi27983+3111988+1411988+14268461151811518
23M23.00 mi1.25 mi27957+2611980+811980+8270631164211642
24M24.00 mi1.00 mi27943+1411977+311977+3271951174711747
40K24.85 mi0.85 mi27936+71197711977273061179211792
25.2M25.20 mi0.35 mi27927+911975+211975+2269281163211632
Finish26.22 mi1.02 mi27932-511977-211977-2277831199411994

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

28240

Females

12136

F65-69

12136

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

28115

Females

12046

F65-69

12046

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

28240

Females

12136

F65-69

12136

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

28039

Females

12021

F65-69

12021

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

27547

Females

11740

F65-69

11740

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

27957

Females

11986

F65-69

11986

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

27600

Females

11832

F65-69

11832

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

27210

Females

11667

F65-69

11667

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27361

Females

11758

F65-69

11758

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

26846

Females

11518

F65-69

11518

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

27063

Females

11642

F65-69

11642

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

27195

Females

11747

F65-69

11747

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

27306

Females

11792

F65-69

11792

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

26928

Females

11632

F65-69

11632

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

27783

Females

11994

F65-69

11994

Passing Analysis

Category:
Athletes Passed
353
Passed By
654
Net Change
-301
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27631
5K → 10K15336-321#27631#27952
10K → 15K8154-146#27952#28098
15K → 20K3951-12#28098#28110
20K → Half253+22#28110#28088
Half → 25K2635-9#28088#28097
25K → 30K5513+42#28097#28055
30K → 20M418+33#28055#28022
20M → 21M179+8#28022#28014
21M → 35K310+31#28014#27983
35K → 23M293+26#27983#27957
23M → 24M2915+14#27957#27943
24M → 40K1811+7#27943#27936
40K → 25.2M112+9#27936#27927
25.2M → Finish914-5#27927#27932
TOTALS353654-301

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