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BOSTON MARATHON 2025

Ashley Zimmerman

Bib: 9944•F

TN

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 40%
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
22:18
Rank: #9301
Start → 5K
22:18 | 7:11/mi
10K· 6.21 mi
44:28
Rank: #9096 (+205)
5K → 10K
22:10 | 7:08/mi
15K· 9.32 mi
1:06:44
Rank: #8991 (+105)
10K → 15K
22:16 | 7:10/mi
20K· 12.43 mi
1:29:37
Rank: #9098 (-107)
15K → 20K
22:53 | 7:22/mi
Half· 13.11 mi
1:34:47
Rank: #9258 (-160)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
1:57:43
Rank: #11988 (-2730)
Half → 25K
22:56 | 9:28/mi
30K· 18.64 mi
2:25:45
Rank: #13253 (-1265)
25K → 30K
28:02 | 9:01/mi
20M
2:38:54
Rank: #13877 (-624)
30K → 20M
13:09 | 9:41/mi
21M
2:48:44
Rank: #14139 (-262)
20M → 21M
9:50 | 9:50/mi
35K· 21.75 mi
2:56:08
Rank: #14566 (-427)
21M → 35K
7:24 | 9:53/mi
23M
3:08:24
Rank: #14961 (-395)
35K → 23M
12:16 | 9:48/mi
24M
3:17:52
Rank: #15222 (-261)
23M → 24M
9:28 | 9:28/mi
40K· 24.85 mi
3:25:41
Rank: #15278 (-56)
24M → 40K
7:49 | 9:09/mi
25.2M
3:28:43
Rank: #15197 (+81)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:36:43
Rank: #15026 (+171)
25.2M → Finish
8:00 | 7:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:47
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time2:01:56
Pace9:18 /mi
📊Positive Split: 28.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0522:187:1122:18
7:11
-
10K
6.21 mi11:10:1544:287:0922:10
7:08
-0:03
15K
9.32 mi11:32:311:06:447:1022:16
7:10
+0:02
20K
12.43 mi11:55:241:29:377:1322:53
7:22
+0:12
Half
13.11 mi12:00:341:34:477:145:10
7:34
+0:12
25K
15.53 mi12:23:301:57:437:3522:56
9:28
+1:54
30K
18.64 mi12:51:322:25:457:4928:02
9:01
-0:27
20M
20.00 mi13:04:412:38:547:5713:09
9:41
+0:40
21M
21.00 mi13:14:312:48:448:029:50
9:50
+0:09
35K
21.75 mi13:21:552:56:088:067:24
9:53
+0:03
23M
23.00 mi13:34:113:08:248:1112:16
9:48
-0:05
24M
24.00 mi13:43:393:17:528:159:28
9:28
-0:20
40K
24.85 mi13:51:283:25:418:177:49
9:09
-0:19
25.2M
25.20 mi13:54:303:28:438:173:02
8:48
-0:21
Finish
26.22 mi14:02:303:36:438:168:00
7:51
-0:57

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

7:08 /mi

Average Pace

8:16 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:47

47% of race

Time at Steady Pace

1:11:17

33% of race

Time at Slower Pace

42:39

20% of race

Average Pace: 8:16 /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 mi10:48:0522:187:1122:18
7:11
#9301
10K
6.21 mi11:10:1544:287:0922:10
7:08
#9096
15K
9.32 mi11:32:311:06:447:1022:16
7:10
#8991
20K
12.43 mi11:55:241:29:377:1322:53
7:22
#9098
Half
13.11 mi12:00:341:34:477:145:10
7:34
#9258
25K
15.53 mi12:23:301:57:437:3522:56
9:28
#11988
30K
18.64 mi12:51:322:25:457:4928:02
9:01
#13253
20M
20.00 mi13:04:412:38:547:5713:09
9:41
#13877
21M
21.00 mi13:14:312:48:448:029:50
9:50
#14139
35K
21.75 mi13:21:552:56:088:067:24
9:53
#14566
23M
23.00 mi13:34:113:08:248:1112:16
9:48
#14961
24M
24.00 mi13:43:393:17:528:159:28
9:28
#15222
40K
24.85 mi13:51:283:25:418:177:49
9:09
#15278
25.2M
25.20 mi13:54:303:28:438:173:02
8:48
#15197
Finish
26.22 mi14:02:303:36:438:168:00
7:51
#15026
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9301151515158863(Top 31%)1375(Top 11%)1375(Top 25%)
10K6.21 mi3.10 mi9096+2051419+961419+968979(Top 32%)1372(Top 11%)1372(Top 25%)
15K9.32 mi3.11 mi8991+1051392+271392+278863(Top 31%)1375(Top 11%)1375(Top 25%)
20K12.43 mi3.11 mi9098-1071460-681460-689619(Top 34%)1800(Top 15%)1800(Top 33%)
Half13.11 mi0.68 mi9258-1601535-751535-7512455(Top 44%)3222(Top 26%)3222(Top 59%)
25K15.53 mi2.42 mi11988-27302914-13792914-137921722(Top 76%)8495(Top 69%)8495(Top 155%)
30K18.64 mi3.11 mi13253-12653693-7793693-77917806(Top 63%)6473(Top 53%)6473(Top 118%)
20M20.00 mi1.36 mi13877-6244074-3814074-38119866(Top 70%)7704(Top 63%)7704(Top 141%)
21M21.00 mi1.00 mi14139-2624242-1684242-16817628(Top 62%)6599(Top 54%)6599(Top 121%)
35K21.75 mi0.75 mi14566-4274492-2504492-25021596(Top 76%)8819(Top 72%)8819(Top 161%)
23M23.00 mi1.25 mi14961-3954744-2524744-25219788(Top 70%)7934(Top 65%)7934(Top 145%)
24M24.00 mi1.00 mi15222-2614934-1904934-19019508(Top 69%)7822(Top 64%)7822(Top 143%)
40K24.85 mi0.85 mi15278-565002-685002-6817093(Top 60%)6624(Top 54%)6624(Top 121%)
25.2M25.20 mi0.35 mi15197+814966+364966+3610733(Top 38%)3389(Top 28%)3389(Top 62%)
Finish26.22 mi1.02 mi15026+1714888+784888+7811864(Top 42%)3872(Top 32%)3872(Top 71%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8863

Females

1375

F18-39

1375

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

8979

Females

1372

F18-39

1372

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8863

Females

1375

F18-39

1375

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9619

Females

1800

F18-39

1800

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

12455

Females

3222

F18-39

3222

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

21722

Females

8495

F18-39

8495

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

17806

Females

6473

F18-39

6473

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19866

Females

7704

F18-39

7704

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17628

Females

6599

F18-39

6599

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

21596

Females

8819

F18-39

8819

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19788

Females

7934

F18-39

7934

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

19508

Females

7822

F18-39

7822

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17093

Females

6624

F18-39

6624

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10733

Females

3389

F18-39

3389

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

11864

Females

3872

F18-39

3872

Passing Analysis

Category:
Athletes Passed
1216
Passed By
6939
Net Change
-5725
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9301
5K → 10K340135+205#9301#9096
10K → 15K214109+105#9096#8991
15K → 20K129236-107#8991#9098
20K → Half8168-160#9098#9258
Half → 25K52733-2730#9258#11988
25K → 30K471312-1265#11988#13253
30K → 20M36660-624#13253#13877
20M → 21M40302-262#13877#14139
21M → 35K13440-427#14139#14566
35K → 23M35430-395#14566#14961
23M → 24M23284-261#14961#15222
24M → 40K60116-56#15222#15278
40K → 25.2M832+81#15278#15197
25.2M → Finish18312+171#15197#15026
TOTALS12166939-5725
📊

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