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BOSTON MARATHON 2025

Kelby Mcmahon

Bib: 17838•F

GA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Division (F18-39)
#0 / 5469
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:38
Rank: #10219
Start → 5K
22:38 | 7:17/mi
10K· 6.21 mi
45:43
Rank: #10846 (-627)
5K → 10K
23:05 | 7:26/mi
15K· 9.32 mi
1:08:51
Rank: #10946 (-100)
10K → 15K
23:08 | 7:27/mi
20K· 12.43 mi
1:32:12
Rank: #10927 (+19)
15K → 20K
23:21 | 7:31/mi
Half· 13.11 mi
1:37:17
Rank: #10938 (-11)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:55:45
Rank: #10906 (+32)
Half → 25K
18:28 | 7:37/mi
30K· 18.64 mi
2:20:06
Rank: #10724 (+182)
25K → 30K
24:21 | 7:50/mi
20M
2:30:42
Rank: #10559 (+165)
30K → 20M
10:36 | 7:48/mi
21M
2:38:48
Rank: #10349 (+210)
20M → 21M
8:06 | 8:06/mi
35K· 21.75 mi
2:44:16
Rank: #10211 (+138)
21M → 35K
5:28 | 7:18/mi
23M
2:54:09
Rank: #10116 (+95)
35K → 23M
9:53 | 7:54/mi
24M
3:01:38
Rank: #9958 (+158)
23M → 24M
7:29 | 7:29/mi
40K· 24.85 mi
3:08:08
Rank: #9820 (+138)
24M → 40K
6:30 | 7:36/mi
25.2M
3:11:00
Rank: #9772 (+48)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:18:28
Rank: #9666 (+106)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:17
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:41:11
Pace7:43 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:5322:387:1722:38
7:17
-
10K
6.21 mi11:35:5845:437:2123:05
7:26
+0:09
15K
9.32 mi11:59:061:08:517:2323:08
7:27
+0:01
20K
12.43 mi12:22:271:32:127:2523:21
7:31
+0:04
Half
13.11 mi12:27:321:37:177:255:05
7:27
-0:04
25K
15.53 mi12:46:001:55:457:2718:28
7:37
+0:10
30K
18.64 mi13:10:212:20:067:3124:21
7:50
+0:13
20M
20.00 mi13:20:572:30:427:3210:36
7:48
-0:02
21M
21.00 mi13:29:032:38:487:348:06
8:06
+0:18
35K
21.75 mi13:34:312:44:167:335:28
7:18
-0:48
23M
23.00 mi13:44:242:54:097:349:53
7:54
+0:36
24M
24.00 mi13:51:533:01:387:347:29
7:29
-0:25
40K
24.85 mi13:58:233:08:087:346:30
7:36
+0:07
25.2M
25.20 mi14:01:153:11:007:352:52
8:19
+0:43
Finish
26.22 mi14:08:433:18:287:357:28
7:20
-0:59

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

7:17 /mi

Average Pace

7:35 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:30

94% of race

Time at Steady Pace

10:58

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi11:12:5322:387:1722:38
7:17
#10219
10K
6.21 mi11:35:5845:437:2123:05
7:26
#10846
15K
9.32 mi11:59:061:08:517:2323:08
7:27
#10946
20K
12.43 mi12:22:271:32:127:2523:21
7:31
#10927
Half
13.11 mi12:27:321:37:177:255:05
7:27
#10938
25K
15.53 mi12:46:001:55:457:2718:28
7:37
#10906
30K
18.64 mi13:10:212:20:067:3124:21
7:50
#10724
20M
20.00 mi13:20:572:30:427:3210:36
7:48
#10559
21M
21.00 mi13:29:032:38:487:348:06
8:06
#10349
35K
21.75 mi13:34:312:44:167:335:28
7:18
#10211
23M
23.00 mi13:44:242:54:097:349:53
7:54
#10116
24M
24.00 mi13:51:533:01:387:347:29
7:29
#9958
40K
24.85 mi13:58:233:08:087:346:30
7:36
#9820
25.2M
25.20 mi14:01:153:11:007:352:52
8:19
#9772
Finish
26.22 mi14:08:433:18:287:357:28
7:20
#9666
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi102191909190911301(Top 40%)2528(Top 21%)2528(Top 46%)
10K6.21 mi3.10 mi10846-6272231-3222231-32211464(Top 40%)2543(Top 21%)2543(Top 46%)
15K9.32 mi3.11 mi10946-1002291-602291-6011301(Top 40%)2528(Top 21%)2528(Top 46%)
20K12.43 mi3.11 mi10927+192299-82299-810901(Top 38%)2420(Top 20%)2420(Top 44%)
Half13.11 mi0.68 mi10938-112311-122311-1211339(Top 40%)2584(Top 21%)2584(Top 47%)
25K15.53 mi2.42 mi10906+322335-242335-2410914(Top 38%)2536(Top 21%)2536(Top 46%)
30K18.64 mi3.11 mi10724+1822322+132322+1310205(Top 36%)2381(Top 19%)2381(Top 44%)
20M20.00 mi1.36 mi10559+1652282+402282+409049(Top 32%)2004(Top 16%)2004(Top 37%)
21M21.00 mi1.00 mi10349+2102218+642218+647993(Top 28%)1732(Top 14%)1732(Top 32%)
35K21.75 mi0.75 mi10211+1382164+542164+547332(Top 26%)1433(Top 12%)1433(Top 26%)
23M23.00 mi1.25 mi10116+952161+32161+39258(Top 33%)2374(Top 19%)2374(Top 43%)
24M24.00 mi1.00 mi9958+1582119+422119+427607(Top 27%)1713(Top 14%)1713(Top 31%)
40K24.85 mi0.85 mi9820+1382092+272092+277474(Top 26%)1752(Top 14%)1752(Top 32%)
25.2M25.20 mi0.35 mi9772+482088+42088+47781(Top 27%)1970(Top 16%)1970(Top 36%)
Finish26.22 mi1.02 mi9666+1062076+122076+127993(Top 28%)2068(Top 17%)2068(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

11301

Females

2528

F18-39

2528

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

11464

Females

2543

F18-39

2543

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

11301

Females

2528

F18-39

2528

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10901

Females

2420

F18-39

2420

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

11339

Females

2584

F18-39

2584

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10914

Females

2536

F18-39

2536

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10205

Females

2381

F18-39

2381

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

9049

Females

2004

F18-39

2004

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7993

Females

1732

F18-39

1732

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

7332

Females

1433

F18-39

1433

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9258

Females

2374

F18-39

2374

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7607

Females

1713

F18-39

1713

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7474

Females

1752

F18-39

1752

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7781

Females

1970

F18-39

1970

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7993

Females

2068

F18-39

2068

Passing Analysis

Category:
Athletes Passed
2173
Passed By
1619
Net Change
+553
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10219
5K → 10K78705-627#10219#10846
10K → 15K143243-100#10846#10946
15K → 20K179160+19#10946#10927
20K → Half3243-11#10927#10938
Half → 25K173141+32#10938#10906
25K → 30K328146+182#10906#10724
30K → 20M19429+165#10724#10559
20M → 21M23020+210#10559#10349
21M → 35K1435+138#10349#10211
35K → 23M15257+95#10211#10116
23M → 24M17416+158#10116#9958
24M → 40K15314+138#9958#9820
40K → 25.2M6618+48#9820#9772
25.2M → Finish12822+106#9772#9666
TOTALS21731619+553
📊

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