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BOSTON MARATHON 2025

Chelsea Pishnery

Bib: 18375•F

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Overall
#0 / 28404
Top 42%
Gender (Female)
#0 / 12228
Top 26%
Division (F18-39)
#0 / 5469
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:13
Rank: #14769
Start → 5K
24:13 | 7:48/mi
10K· 6.21 mi
48:07
Rank: #14279 (+490)
5K → 10K
23:54 | 7:42/mi
15K· 9.32 mi
1:12:12
Rank: #14167 (+112)
10K → 15K
24:05 | 7:45/mi
20K· 12.43 mi
1:36:09
Rank: #13690 (+477)
15K → 20K
23:57 | 7:43/mi
Half· 13.11 mi
1:41:18
Rank: #13602 (+88)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
2:00:14
Rank: #13355 (+247)
Half → 25K
18:56 | 7:49/mi
30K· 18.64 mi
2:24:47
Rank: #12798 (+557)
25K → 30K
24:33 | 7:54/mi
20M
2:35:36
Rank: #12566 (+232)
30K → 20M
10:49 | 7:58/mi
21M
2:44:00
Rank: #12378 (+188)
20M → 21M
8:24 | 8:24/mi
35K· 21.75 mi
2:50:00
Rank: #12358 (+20)
21M → 35K
6:00 | 8:01/mi
23M
3:00:13
Rank: #12250 (+108)
35K → 23M
10:13 | 8:10/mi
24M
3:08:06
Rank: #12148 (+102)
23M → 24M
7:53 | 7:53/mi
40K· 24.85 mi
3:14:59
Rank: #12067 (+81)
24M → 40K
6:53 | 8:03/mi
25.2M
3:17:59
Rank: #12009 (+58)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:25:32
Rank: #11851 (+158)
25.2M → Finish
7:33 | 7:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:18
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:44:14
Pace7:57 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0924:137:4824:13
7:48
-
10K
6.21 mi11:39:0348:077:4523:54
7:42
-0:06
15K
9.32 mi12:03:081:12:127:4524:05
7:45
+0:03
20K
12.43 mi12:27:051:36:097:4423:57
7:43
-0:02
Half
13.11 mi12:32:141:41:187:445:09
7:33
-0:10
25K
15.53 mi12:51:102:00:147:4418:56
7:49
+0:16
30K
18.64 mi13:15:432:24:477:4624:33
7:54
+0:05
20M
20.00 mi13:26:322:35:367:4710:49
7:58
+0:04
21M
21.00 mi13:34:562:44:007:498:24
8:24
+0:26
35K
21.75 mi13:40:562:50:007:496:00
8:01
-0:23
23M
23.00 mi13:51:093:00:137:5010:13
8:10
+0:09
24M
24.00 mi13:59:023:08:067:507:53
7:53
-0:17
40K
24.85 mi14:05:553:14:597:516:53
8:03
+0:10
25.2M
25.20 mi14:08:553:17:597:513:00
8:42
+0:39
Finish
26.22 mi14:16:283:25:327:517:33
7:25
-1:17

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

7:25 /mi

Average Pace

7:51 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:55

89% of race

Time at Steady Pace

21:37

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi11:15:0924:137:4824:13
7:48
#14769
10K
6.21 mi11:39:0348:077:4523:54
7:42
#14279
15K
9.32 mi12:03:081:12:127:4524:05
7:45
#14167
20K
12.43 mi12:27:051:36:097:4423:57
7:43
#13690
Half
13.11 mi12:32:141:41:187:445:09
7:33
#13602
25K
15.53 mi12:51:102:00:147:4418:56
7:49
#13355
30K
18.64 mi13:15:432:24:477:4624:33
7:54
#12798
20M
20.00 mi13:26:322:35:367:4710:49
7:58
#12566
21M
21.00 mi13:34:562:44:007:498:24
8:24
#12378
35K
21.75 mi13:40:562:50:007:496:00
8:01
#12358
23M
23.00 mi13:51:093:00:137:5010:13
8:10
#12250
24M
24.00 mi13:59:023:08:067:507:53
7:53
#12148
40K
24.85 mi14:05:553:14:597:516:53
8:03
#12067
25.2M
25.20 mi14:08:553:17:597:513:00
8:42
#12009
Finish
26.22 mi14:16:283:25:327:517:33
7:25
#11851
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi147694390439013952(Top 49%)3983(Top 33%)3983(Top 73%)
10K6.21 mi3.10 mi14279+4904104+2864104+28613834(Top 49%)3856(Top 32%)3856(Top 71%)
15K9.32 mi3.11 mi14167+1124068+364068+3613952(Top 49%)3983(Top 33%)3983(Top 73%)
20K12.43 mi3.11 mi13690+4773836+2323836+23212507(Top 44%)3277(Top 27%)3277(Top 60%)
Half13.11 mi0.68 mi13602+883789+473789+4712201(Top 43%)3062(Top 25%)3062(Top 56%)
25K15.53 mi2.42 mi13355+2473687+1023687+10212445(Top 44%)3361(Top 27%)3361(Top 61%)
30K18.64 mi3.11 mi12798+5573419+2683419+26810669(Top 38%)2634(Top 22%)2634(Top 48%)
20M20.00 mi1.36 mi12566+2323344+753344+7510212(Top 36%)2549(Top 21%)2549(Top 47%)
21M21.00 mi1.00 mi12378+1883277+673277+679882(Top 35%)2566(Top 21%)2566(Top 47%)
35K21.75 mi0.75 mi12358+203294-173294-1712409(Top 44%)3844(Top 31%)3844(Top 70%)
23M23.00 mi1.25 mi12250+1083269+253269+2511137(Top 39%)3294(Top 27%)3294(Top 60%)
24M24.00 mi1.00 mi12148+1023243+263243+2610468(Top 37%)3034(Top 25%)3034(Top 55%)
40K24.85 mi0.85 mi12067+813242+13242+110584(Top 37%)3208(Top 26%)3208(Top 59%)
25.2M25.20 mi0.35 mi12009+583228+143228+1410083(Top 35%)3070(Top 25%)3070(Top 56%)
Finish26.22 mi1.02 mi11851+1583180+483180+488601(Top 30%)2348(Top 19%)2348(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13952

Females

3983

F18-39

3983

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

13834

Females

3856

F18-39

3856

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13952

Females

3983

F18-39

3983

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

12507

Females

3277

F18-39

3277

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

12201

Females

3062

F18-39

3062

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

12445

Females

3361

F18-39

3361

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10669

Females

2634

F18-39

2634

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

10212

Females

2549

F18-39

2549

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9882

Females

2566

F18-39

2566

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

12409

Females

3844

F18-39

3844

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

11137

Females

3294

F18-39

3294

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

10468

Females

3034

F18-39

3034

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10584

Females

3208

F18-39

3208

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

10083

Females

3070

F18-39

3070

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8601

Females

2348

F18-39

2348

Passing Analysis

Category:
Athletes Passed
3503
Passed By
585
Net Change
+2918
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14769
5K → 10K602112+490#14769#14279
10K → 15K261149+112#14279#14167
15K → 20K49821+477#14167#13690
20K → Half946+88#13690#13602
Half → 25K29144+247#13602#13355
25K → 30K57619+557#13355#12798
30K → 20M25220+232#12798#12566
20M → 21M21426+188#12566#12378
21M → 35K7050+20#12378#12358
35K → 23M15951+108#12358#12250
23M → 24M12927+102#12250#12148
24M → 40K11736+81#12148#12067
40K → 25.2M668+58#12067#12009
25.2M → Finish17416+158#12009#11851
TOTALS3503585+2918
📊

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