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BOSTON MARATHON 2025

Caitlyn Kusnierczyk

Bib: 13210•F

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0:00
/ mi
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Overall
#0 / 28404
Top 33%
Gender (Female)
#0 / 12228
Top 16%
Division (F18-39)
#0 / 5469
Top 28%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:10/mi
22:15
↑ 97↓ 3451.5%
10K· 6.21 mi
7:03/mi
44:08
↑ 79↓ 1380.4%
15K· 9.32 mi
6:56/mi
1:05:42
↑ 67↓ 78
20K· 12.43 mi
8:36/mi
1:32:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:02/mi
1:37:14
↑ 19↓ 370.5%
25K· 15.53 mi
7:08/mi
1:54:31
↑ 66↓ 880.2%
30K· 18.64 mi
7:22/mi
2:17:23
↑ 181↓ 1480.2%
20M
7:31/mi
2:27:36
↑ 64↓ 500.2%
21M
8:17/mi
2:35:53
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:41:27
↑ 17↓ 861.7%
23M
8:22/mi
2:51:56
↑ 23↓ 630.6%
24M
7:35/mi
2:59:31
↓ 821.3%
40K· 24.85 mi
8:33/mi
3:06:50
↓ 200.3%
25.2M
9:49/mi
3:10:13
↑ 13↓ 160.2%
Finish· 26.22 mi
7:18/mi
3:17:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:14
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:40:25
Pace7:40 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1222:157:1022:15
7:10
-
10K
6.21 mi11:13:0544:087:0621:53
7:03
-0:07
15K
9.32 mi11:34:391:05:427:0321:34
6:56
-0:07
20K
12.43 mi12:01:231:32:267:2626:44
8:36
+1:40
Half
13.11 mi12:06:111:37:147:254:48
7:02
-1:34
25K
15.53 mi12:23:281:54:317:2217:17
7:08
+0:06
30K
18.64 mi12:46:202:17:237:2222:52
7:22
+0:14
20M
20.00 mi12:56:332:27:367:2310:13
7:31
+0:09
21M
21.00 mi13:04:502:35:537:258:17
8:17
+0:46
35K
21.75 mi13:10:242:41:277:255:34
7:26
-0:51
23M
23.00 mi13:20:532:51:567:2910:29
8:22
+0:56
24M
24.00 mi13:28:282:59:317:297:35
7:35
-0:47
40K
24.85 mi13:35:473:06:507:317:19
8:33
+0:58
25.2M
25.20 mi13:39:103:10:137:333:23
9:49
+1:16
Finish
26.22 mi13:46:363:17:397:337:26
7:18
-2:31

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

6:56 /mi

Average Pace

7:33 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

26:22

13% of race

Time at Steady Pace

1:55:05

58% of race

Time at Slower Pace

56:12

28% of race

Average Pace: 7:32 /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 mi10:51:1222:157:1022:15
7:10
#9164
10K
6.21 mi11:13:0544:087:0621:53
7:03
#8663
15K
9.32 mi11:34:391:05:427:0321:34
6:56
#8110
20K
12.43 mi12:01:231:32:267:2626:44
8:36
#11099
Half
13.11 mi12:06:111:37:147:254:48
7:02
#10900
25K
15.53 mi12:23:281:54:317:2217:17
7:08
#10208
30K
18.64 mi12:46:202:17:237:2222:52
7:22
#9447
20M
20.00 mi12:56:332:27:367:2310:13
7:31
#9235
21M
21.00 mi13:04:502:35:537:258:17
8:17
#9178
35K
21.75 mi13:10:242:41:277:255:34
7:26
#9121
23M
23.00 mi13:20:532:51:567:2910:29
8:22
#9290
24M
24.00 mi13:28:282:59:317:297:35
7:35
#9229
40K
24.85 mi13:35:473:06:507:317:19
8:33
#9393
25.2M
25.20 mi13:39:103:10:137:333:23
9:49
#9509
Finish
26.22 mi13:46:363:17:397:337:26
7:18
#9408
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9164144114417264(Top 26%)803(Top 7%)803(Top 15%)
10K6.21 mi3.10 mi8663+5011246+1951246+1958259(Top 29%)1100(Top 9%)1100(Top 20%)
15K9.32 mi3.11 mi8110+5531048+1981048+1987264(Top 26%)803(Top 7%)803(Top 15%)
20K12.43 mi3.11 mi11099-29892395-13472395-134718876(Top 66%)6834(Top 56%)6834(Top 125%)
Half13.11 mi0.68 mi10900+1992292+1032292+1037913(Top 28%)1072(Top 9%)1072(Top 20%)
25K15.53 mi2.42 mi10208+6922005+2872005+2877174(Top 25%)918(Top 8%)918(Top 17%)
30K18.64 mi3.11 mi9447+7611703+3021703+3026829(Top 24%)950(Top 8%)950(Top 17%)
20M20.00 mi1.36 mi9235+2121640+631640+637169(Top 25%)1216(Top 10%)1216(Top 22%)
21M21.00 mi1.00 mi9178+571652-121652-129141(Top 32%)2221(Top 18%)2221(Top 41%)
35K21.75 mi0.75 mi9121+571654-21654-28259(Top 29%)1787(Top 15%)1787(Top 33%)
23M23.00 mi1.25 mi9290-1691767-1131767-11312507(Top 44%)3992(Top 33%)3992(Top 73%)
24M24.00 mi1.00 mi9229+611766+11766+18324(Top 29%)2016(Top 16%)2016(Top 37%)
40K24.85 mi0.85 mi9393-1641885-1191885-11913794(Top 49%)4842(Top 40%)4842(Top 89%)
25.2M25.20 mi0.35 mi9509-1161955-701955-7016149(Top 57%)6134(Top 50%)6134(Top 112%)
Finish26.22 mi1.02 mi9408+1011948+71948+77766(Top 27%)1964(Top 16%)1964(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

7264

Females

803

F18-39

803

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

8259

Females

1100

F18-39

1100

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

7264

Females

803

F18-39

803

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18876

Females

6834

F18-39

6834

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7913

Females

1072

F18-39

1072

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

7174

Females

918

F18-39

918

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6829

Females

950

F18-39

950

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

7169

Females

1216

F18-39

1216

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

9141

Females

2221

F18-39

2221

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

8259

Females

1787

F18-39

1787

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

12507

Females

3992

F18-39

3992

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8324

Females

2016

F18-39

2016

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13794

Females

4842

F18-39

4842

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16149

Females

6134

F18-39

6134

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7766

Females

1964

F18-39

1964

Passing Analysis

Category:
Athletes Passed
3559*
Passed By
3801
Net Change
-244
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9164
5K → 10K55655+501#9164#8663
10K → 15K5607+553#8663#8110
15K → 20K42991-2989#8110#11099
20K → Half2001+199#11099#10900
Half → 25K6920+692#10900#10208
25K → 30K762*1+761#10208#9447
30K → 20M22412+212#9447#9235
20M → 21M12265+57#9235#9178
21M → 35K7720+57#9178#9121
35K → 23M70239-169#9121#9290
23M → 24M11150+61#9290#9229
24M → 40K36200-164#9229#9393
40K → 25.2M18134-116#9393#9509
25.2M → Finish12726+101#9509#9408
TOTALS3559*3801-244

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

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