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BOSTON MARATHON 2025

Kamryn Matthews

Bib: 16518•F

FL

0:00
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

Start
0:00:00
Race begins
5K· 3.11 mi
22:56
Rank: #11151
Start → 5K
22:56 | 7:23/mi
10K· 6.21 mi
46:10
Rank: #11518 (-367)
5K → 10K
23:14 | 7:29/mi
15K· 9.32 mi
1:09:34
Rank: #11662 (-144)
10K → 15K
23:24 | 7:32/mi
20K· 12.43 mi
1:32:56
Rank: #11446 (+216)
15K → 20K
23:22 | 7:31/mi
Half· 13.11 mi
1:38:02
Rank: #11458 (-12)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:56:21
Rank: #11243 (+215)
Half → 25K
18:19 | 7:33/mi
30K· 18.64 mi
2:19:56
Rank: #10648 (+595)
25K → 30K
23:35 | 7:35/mi
20M
2:30:23
Rank: #10417 (+231)
30K → 20M
10:27 | 7:41/mi
21M
2:38:23
Rank: #10177 (+240)
20M → 21M
8:00 | 8:00/mi
35K· 21.75 mi
2:44:00
Rank: #10096 (+81)
21M → 35K
5:37 | 7:30/mi
23M
2:53:32
Rank: #9898 (+198)
35K → 23M
9:32 | 7:37/mi
24M
3:00:58
Rank: #9726 (+172)
23M → 24M
7:26 | 7:26/mi
40K· 24.85 mi
3:07:28
Rank: #9599 (+127)
24M → 40K
6:30 | 7:36/mi
25.2M
3:10:12
Rank: #9504 (+95)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:17:29
Rank: #9362 (+142)
25.2M → Finish
7:17 | 7:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:02
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:39:27
Pace7:35 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:4322:567:2322:56
7:23
-
10K
6.21 mi11:19:5746:107:2623:14
7:29
+0:06
15K
9.32 mi11:43:211:09:347:2823:24
7:32
+0:03
20K
12.43 mi12:06:431:32:567:2923:22
7:31
-0:01
Half
13.11 mi12:11:491:38:027:295:06
7:29
-0:02
25K
15.53 mi12:30:081:56:217:2918:19
7:33
+0:04
30K
18.64 mi12:53:432:19:567:3023:35
7:35
+0:02
20M
20.00 mi13:04:102:30:237:3110:27
7:41
+0:06
21M
21.00 mi13:12:102:38:237:338:00
8:00
+0:19
35K
21.75 mi13:17:472:44:007:325:37
7:30
-0:30
23M
23.00 mi13:27:192:53:327:339:32
7:37
+0:07
24M
24.00 mi13:34:453:00:587:327:26
7:26
-0:11
40K
24.85 mi13:41:153:07:287:336:30
7:36
+0:10
25.2M
25.20 mi13:43:593:10:127:332:44
7:56
+0:20
Finish
26.22 mi13:51:163:17:297:327:17
7:09
-0:47

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

7:09 /mi

Average Pace

7:32 /mi

Slowest Pace

8:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:45

95% of race

Time at Steady Pace

10:44

5% of race

Time at Slower Pace

0:00

0% 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 mi10:56:4322:567:2322:56
7:23
#11151
10K
6.21 mi11:19:5746:107:2623:14
7:29
#11518
15K
9.32 mi11:43:211:09:347:2823:24
7:32
#11662
20K
12.43 mi12:06:431:32:567:2923:22
7:31
#11446
Half
13.11 mi12:11:491:38:027:295:06
7:29
#11458
25K
15.53 mi12:30:081:56:217:2918:19
7:33
#11243
30K
18.64 mi12:53:432:19:567:3023:35
7:35
#10648
20M
20.00 mi13:04:102:30:237:3110:27
7:41
#10417
21M
21.00 mi13:12:102:38:237:338:00
8:00
#10177
35K
21.75 mi13:17:472:44:007:325:37
7:30
#10096
23M
23.00 mi13:27:192:53:327:339:32
7:37
#9898
24M
24.00 mi13:34:453:00:587:327:26
7:26
#9726
40K
24.85 mi13:41:153:07:287:336:30
7:36
#9599
25.2M
25.20 mi13:43:593:10:127:332:44
7:56
#9504
Finish
26.22 mi13:51:163:17:297:327:17
7:09
#9362
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi111512353235312053(Top 42%)2929(Top 24%)2929(Top 54%)
10K6.21 mi3.10 mi11518-3672562-2092562-20911908(Top 42%)2760(Top 23%)2760(Top 50%)
15K9.32 mi3.11 mi11662-1442654-922654-9212053(Top 42%)2929(Top 24%)2929(Top 54%)
20K12.43 mi3.11 mi11446+2162578+762578+7610948(Top 39%)2441(Top 20%)2441(Top 45%)
Half13.11 mi0.68 mi11458-122584-62584-611507(Top 41%)2666(Top 22%)2666(Top 49%)
25K15.53 mi2.42 mi11243+2152510+742510+7410410(Top 37%)2286(Top 19%)2286(Top 42%)
30K18.64 mi3.11 mi10648+5952280+2302280+2308397(Top 30%)1556(Top 13%)1556(Top 28%)
20M20.00 mi1.36 mi10417+2312204+762204+768305(Top 29%)1669(Top 14%)1669(Top 31%)
21M21.00 mi1.00 mi10177+2402128+762128+767373(Top 26%)1468(Top 12%)1468(Top 27%)
35K21.75 mi0.75 mi10096+812116+122116+128712(Top 31%)1991(Top 16%)1991(Top 36%)
23M23.00 mi1.25 mi9898+1982063+532063+537365(Top 26%)1564(Top 13%)1564(Top 29%)
24M24.00 mi1.00 mi9726+1722007+562007+567292(Top 26%)1581(Top 13%)1581(Top 29%)
40K24.85 mi0.85 mi9599+1271982+251982+257468(Top 26%)1746(Top 14%)1746(Top 32%)
25.2M25.20 mi0.35 mi9504+951953+291953+295674(Top 20%)1137(Top 9%)1137(Top 21%)
Finish26.22 mi1.02 mi9362+1421928+251928+256726(Top 24%)1547(Top 13%)1547(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

12053

Females

2929

F18-39

2929

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11908

Females

2760

F18-39

2760

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

12053

Females

2929

F18-39

2929

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10948

Females

2441

F18-39

2441

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

11507

Females

2666

F18-39

2666

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10410

Females

2286

F18-39

2286

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8397

Females

1556

F18-39

1556

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8305

Females

1669

F18-39

1669

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7373

Females

1468

F18-39

1468

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8712

Females

1991

F18-39

1991

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

7365

Females

1564

F18-39

1564

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7292

Females

1581

F18-39

1581

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7468

Females

1746

F18-39

1746

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5674

Females

1137

F18-39

1137

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6726

Females

1547

F18-39

1547

Passing Analysis

Category:
Athletes Passed
2861*
Passed By
1072
Net Change
+1789
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11151
5K → 10K122489-367#11151#11518
10K → 15K131275-144#11518#11662
15K → 20K29680+216#11662#11446
20K → Half3042-12#11446#11458
Half → 25K27156+215#11458#11243
25K → 30K61217+595#11243#10648
30K → 20M24615+231#10648#10417
20M → 21M25212+240#10417#10177
21M → 35K10423+81#10177#10096
35K → 23M217*19+198#10096#9898
23M → 24M18311+172#9898#9726
24M → 40K14316+127#9726#9599
40K → 25.2M950+95#9599#9504
25.2M → Finish15917+142#9504#9362
TOTALS2861*1072+1789

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

📊

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