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BOSTON MARATHON 2025

Alison Cohen

Bib: 16141•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
Masters (Masters Women)
#0 / 6759
Top 29%
Division (F50-54)
#0 / 1303
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:11
Rank: #17395
Start → 5K
25:11 | 8:06/mi
10K· 6.21 mi
50:11
Rank: #17089 (+306)
5K → 10K
25:00 | 8:03/mi
15K· 9.32 mi
1:15:20
Rank: #16951 (+138)
10K → 15K
25:09 | 8:06/mi
20K· 12.43 mi
1:40:53
Rank: #16818 (+133)
15K → 20K
25:33 | 8:13/mi
Half· 13.11 mi
1:46:24
Rank: #16786 (+32)
20K → Half
5:31 | 8:05/mi
25K· 15.53 mi
2:06:36
Rank: #16641 (+145)
Half → 25K
20:12 | 8:20/mi
30K· 18.64 mi
2:32:57
Rank: #16241 (+400)
25K → 30K
26:21 | 8:29/mi
20M
2:44:47
Rank: #16135 (+106)
30K → 20M
11:50 | 8:42/mi
21M
2:54:02
Rank: #15995 (+140)
20M → 21M
9:15 | 9:15/mi
35K· 21.75 mi
3:00:24
Rank: #15943 (+52)
21M → 35K
6:22 | 8:31/mi
23M
3:11:29
Rank: #15850 (+93)
35K → 23M
11:05 | 8:51/mi
24M
3:20:04
Rank: #15811 (+39)
23M → 24M
8:35 | 8:35/mi
40K· 24.85 mi
3:27:25
Rank: #15712 (+99)
24M → 40K
7:21 | 8:36/mi
25.2M
3:30:38
Rank: #15671 (+41)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:38:56
Rank: #15596 (+75)
25.2M → Finish
8:18 | 8:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:24
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:52:32
Pace8:35 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5425:118:0625:11
8:06
-
10K
6.21 mi11:41:5450:118:0525:00
8:03
-0:03
15K
9.32 mi12:07:031:15:208:0525:09
8:06
+0:03
20K
12.43 mi12:32:361:40:538:0725:33
8:13
+0:07
Half
13.11 mi12:38:071:46:248:075:31
8:05
-0:08
25K
15.53 mi12:58:192:06:368:0920:12
8:20
+0:15
30K
18.64 mi13:24:402:32:578:1226:21
8:29
+0:09
20M
20.00 mi13:36:302:44:478:1411:50
8:42
+0:13
21M
21.00 mi13:45:452:54:028:179:15
9:15
+0:33
35K
21.75 mi13:52:073:00:248:186:22
8:31
-0:44
23M
23.00 mi14:03:123:11:298:2011:05
8:51
+0:20
24M
24.00 mi14:11:473:20:048:208:35
8:35
-0:16
40K
24.85 mi14:19:083:27:258:217:21
8:36
+0:01
25.2M
25.20 mi14:22:213:30:388:223:13
9:20
+0:44
Finish
26.22 mi14:30:393:38:568:218:18
8:09
-1:11

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

8:03 /mi

Average Pace

8:21 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:26:28

94% of race

Time at Steady Pace

12:28

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:21 /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 mi11:16:5425:118:0625:11
8:06
#17395
10K
6.21 mi11:41:5450:118:0525:00
8:03
#17089
15K
9.32 mi12:07:031:15:208:0525:09
8:06
#16951
20K
12.43 mi12:32:361:40:538:0725:33
8:13
#16818
Half
13.11 mi12:38:071:46:248:075:31
8:05
#16786
25K
15.53 mi12:58:192:06:368:0920:12
8:20
#16641
30K
18.64 mi13:24:402:32:578:1226:21
8:29
#16241
20M
20.00 mi13:36:302:44:478:1411:50
8:42
#16135
21M
21.00 mi13:45:452:54:028:179:15
9:15
#15995
35K
21.75 mi13:52:073:00:248:186:22
8:31
#15943
23M
23.00 mi14:03:123:11:298:2011:05
8:51
#15850
24M
24.00 mi14:11:473:20:048:208:35
8:35
#15811
40K
24.85 mi14:19:083:27:258:217:21
8:36
#15712
25.2M
25.20 mi14:22:213:30:388:223:13
9:20
#15671
Finish
26.22 mi14:30:393:38:568:218:18
8:09
#15596
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi173955968596816711(Top 59%)5564(Top 46%)5564(Top 427%)
10K6.21 mi3.10 mi17089+3065778+1905778+19016832(Top 59%)5609(Top 46%)5609(Top 430%)
15K9.32 mi3.11 mi16951+1385686+925686+9216711(Top 59%)5564(Top 46%)5564(Top 427%)
20K12.43 mi3.11 mi16818+1335630+565630+5616466(Top 58%)5470(Top 45%)5470(Top 420%)
Half13.11 mi0.68 mi16786+325602+285602+2816557(Top 58%)5503(Top 45%)5503(Top 422%)
25K15.53 mi2.42 mi16641+1455549+535549+5316128(Top 57%)5384(Top 44%)5384(Top 413%)
30K18.64 mi3.11 mi16241+4005371+1785371+17814644(Top 52%)4709(Top 39%)4709(Top 361%)
20M20.00 mi1.36 mi16135+1065345+265345+2615138(Top 53%)5118(Top 42%)5118(Top 393%)
21M21.00 mi1.00 mi15995+1405298+475298+4714908(Top 52%)5124(Top 42%)5124(Top 393%)
35K21.75 mi0.75 mi15943+525293+55293+515553(Top 55%)5543(Top 45%)5543(Top 425%)
23M23.00 mi1.25 mi15850+935281+125281+1215419(Top 54%)5553(Top 45%)5553(Top 426%)
24M24.00 mi1.00 mi15811+395273+85273+815073(Top 53%)5414(Top 44%)5414(Top 416%)
40K24.85 mi0.85 mi15712+995236+375236+3714069(Top 50%)5006(Top 41%)5006(Top 384%)
25.2M25.20 mi0.35 mi15671+415230+65230+613679(Top 48%)4859(Top 40%)4859(Top 373%)
Finish26.22 mi1.02 mi15596+755207+235207+2313933(Top 49%)4923(Top 40%)4923(Top 378%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

16711

Females

5564

F50-54

5564

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

16832

Females

5609

F50-54

5609

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

16711

Females

5564

F50-54

5564

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

16466

Females

5470

F50-54

5470

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16557

Females

5503

F50-54

5503

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

16128

Females

5384

F50-54

5384

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

14644

Females

4709

F50-54

4709

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

15138

Females

5118

F50-54

5118

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

14908

Females

5124

F50-54

5124

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

15553

Females

5543

F50-54

5543

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15419

Females

5553

F50-54

5553

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

15073

Females

5414

F50-54

5414

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14069

Females

5006

F50-54

5006

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13679

Females

4859

F50-54

4859

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13933

Females

4923

F50-54

4923

Passing Analysis

Category:
Athletes Passed
2675
Passed By
876
Net Change
+1799
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17395
5K → 10K466160+306#17395#17089
10K → 15K273135+138#17089#16951
15K → 20K254121+133#16951#16818
20K → Half5422+32#16818#16786
Half → 25K23085+145#16786#16641
25K → 30K44545+400#16641#16241
30K → 20M16357+106#16241#16135
20M → 21M17434+140#16135#15995
21M → 35K9341+52#15995#15943
35K → 23M15764+93#15943#15850
23M → 24M8041+39#15850#15811
24M → 40K12829+99#15811#15712
40K → 25.2M5413+41#15712#15671
25.2M → Finish10429+75#15671#15596
TOTALS2675876+1799
📊

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