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BOSTON MARATHON 2025

Mackenzie Coburn

Bib: 25950•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
31:48
Rank: #26161
Start → 5K
31:48 | 10:14/mi
10K· 6.21 mi
1:03:07
Rank: #25815 (+346)
5K → 10K
31:19 | 10:05/mi
15K· 9.32 mi
1:34:52
Rank: #25674 (+141)
10K → 15K
31:45 | 10:13/mi
20K· 12.43 mi
2:04:39
Rank: #25084 (+590)
15K → 20K
29:47 | 9:35/mi
Half· 13.11 mi
2:11:07
Rank: #25002 (+82)
20K → Half
6:28 | 9:29/mi
25K· 15.53 mi
2:35:30
Rank: #24737 (+265)
Half → 25K
24:23 | 10:03/mi
30K· 18.64 mi
3:06:59
Rank: #24300 (+437)
25K → 30K
31:29 | 10:08/mi
20M
3:21:19
Rank: #24165 (+135)
30K → 20M
14:20 | 10:33/mi
21M
3:31:58
Rank: #23982 (+183)
20M → 21M
10:39 | 10:39/mi
35K· 21.75 mi
3:39:17
Rank: #23876 (+106)
21M → 35K
7:19 | 9:47/mi
23M
3:52:12
Rank: #23740 (+136)
35K → 23M
12:55 | 10:19/mi
24M
4:01:56
Rank: #23609 (+131)
23M → 24M
9:44 | 9:44/mi
40K· 24.85 mi
4:10:28
Rank: #23499 (+110)
24M → 40K
8:32 | 9:59/mi
25.2M
4:14:15
Rank: #23439 (+60)
40K → 25.2M
3:47 | 10:58/mi
Finish· 26.22 mi
4:23:27
Rank: #23320 (+119)
25.2M → Finish
9:12 | 9:02/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:11:07
Pace10:00 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:12:20
Pace10:06 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2731:4810:1431:48
10:14
-
10K
6.21 mi12:22:461:03:0710:0931:19
10:05
-0:09
15K
9.32 mi12:54:311:34:5210:1131:45
10:13
+0:08
20K
12.43 mi13:24:182:04:3910:0229:47
9:35
-0:38
Half
13.11 mi13:30:462:11:0710:006:28
9:29
-0:06
25K
15.53 mi13:55:092:35:3010:0124:23
10:03
+0:34
30K
18.64 mi14:26:383:06:5910:0231:29
10:08
+0:05
20M
20.00 mi14:40:583:21:1910:0414:20
10:33
+0:25
21M
21.00 mi14:51:373:31:5810:0610:39
10:39
+0:06
35K
21.75 mi14:58:563:39:1710:057:19
9:47
-0:52
23M
23.00 mi15:11:513:52:1210:0612:55
10:19
+0:32
24M
24.00 mi15:21:354:01:5610:059:44
9:44
-0:35
40K
24.85 mi15:30:074:10:2810:058:32
9:59
+0:15
25.2M
25.20 mi15:33:544:14:1510:053:47
10:58
+0:59
Finish
26.22 mi15:43:064:23:2710:039:12
9:02
-1:56

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

9:02 /mi

Average Pace

10:03 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:30

24% of race

Time at Steady Pace

2:52:11

65% of race

Time at Slower Pace

28:46

11% of race

Average Pace: 10:03 /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 mi11:51:2731:4810:1431:48
10:14
#26161
10K
6.21 mi12:22:461:03:0710:0931:19
10:05
#25815
15K
9.32 mi12:54:311:34:5210:1131:45
10:13
#25674
20K
12.43 mi13:24:182:04:3910:0229:47
9:35
#25084
Half
13.11 mi13:30:462:11:0710:006:28
9:29
#25002
25K
15.53 mi13:55:092:35:3010:0124:23
10:03
#24737
30K
18.64 mi14:26:383:06:5910:0231:29
10:08
#24300
20M
20.00 mi14:40:583:21:1910:0414:20
10:33
#24165
21M
21.00 mi14:51:373:31:5810:0610:39
10:39
#23982
35K
21.75 mi14:58:563:39:1710:057:19
9:47
#23876
23M
23.00 mi15:11:513:52:1210:0612:55
10:19
#23740
24M
24.00 mi15:21:354:01:5610:059:44
9:44
#23609
40K
24.85 mi15:30:074:10:2810:058:32
9:59
#23499
25.2M
25.20 mi15:33:544:14:1510:053:47
10:58
#23439
Finish
26.22 mi15:43:064:23:2710:039:12
9:02
#23320
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26161108501085025455(Top 90%)10481(Top 86%)10481(Top 192%)
10K6.21 mi3.10 mi25815+34610668+18210668+18225488(Top 90%)10514(Top 86%)10514(Top 192%)
15K9.32 mi3.11 mi25674+14110603+6510603+6525455(Top 90%)10481(Top 86%)10481(Top 192%)
20K12.43 mi3.11 mi25084+59010278+32510278+32523172(Top 82%)9234(Top 76%)9234(Top 169%)
Half13.11 mi0.68 mi25002+8210241+3710241+3723536(Top 83%)9450(Top 77%)9450(Top 173%)
25K15.53 mi2.42 mi24737+26510111+13010111+13023406(Top 82%)9429(Top 77%)9429(Top 172%)
30K18.64 mi3.11 mi24300+4379892+2199892+21922012(Top 77%)8777(Top 72%)8777(Top 160%)
20M20.00 mi1.36 mi24165+1359845+479845+4722579(Top 79%)9200(Top 75%)9200(Top 168%)
21M21.00 mi1.00 mi23982+1839762+839762+8320477(Top 72%)8177(Top 67%)8177(Top 150%)
35K21.75 mi0.75 mi23876+1069712+509712+5021303(Top 75%)8677(Top 71%)8677(Top 159%)
23M23.00 mi1.25 mi23740+1369658+549658+5421501(Top 76%)8821(Top 72%)8821(Top 161%)
24M24.00 mi1.00 mi23609+1319604+549604+5420526(Top 72%)8366(Top 68%)8366(Top 153%)
40K24.85 mi0.85 mi23499+1109558+469558+4620428(Top 72%)8376(Top 68%)8376(Top 153%)
25.2M25.20 mi0.35 mi23439+609536+229536+2220605(Top 73%)8483(Top 69%)8483(Top 155%)
Finish26.22 mi1.02 mi23320+1199484+529484+5219224(Top 68%)7740(Top 63%)7740(Top 142%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

25455

Females

10481

F18-39

10481

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

25488

Females

10514

F18-39

10514

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

25455

Females

10481

F18-39

10481

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

23172

Females

9234

F18-39

9234

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23536

Females

9450

F18-39

9450

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

23406

Females

9429

F18-39

9429

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

22012

Females

8777

F18-39

8777

30K→20M

18.6 - 20.0 mi

Top 79%
×5stories
+64ft-50ft

Overall

22579

Females

9200

F18-39

9200

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20477

Females

8177

F18-39

8177

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

21303

Females

8677

F18-39

8677

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21501

Females

8821

F18-39

8821

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20526

Females

8366

F18-39

8366

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20428

Females

8376

F18-39

8376

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20605

Females

8483

F18-39

8483

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19224

Females

7740

F18-39

7740

Passing Analysis

Category:
Athletes Passed
3023
Passed By
182
Net Change
+2841
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26161
5K → 10K39549+346#26161#25815
10K → 15K20867+141#25815#25674
15K → 20K5933+590#25674#25084
20K → Half842+82#25084#25002
Half → 25K27510+265#25002#24737
25K → 30K4403+437#24737#24300
30K → 20M14914+135#24300#24165
20M → 21M1885+183#24165#23982
21M → 35K1115+106#23982#23876
35K → 23M14610+136#23876#23740
23M → 24M1332+131#23740#23609
24M → 40K1144+110#23609#23499
40K → 25.2M633+60#23499#23439
25.2M → Finish1245+119#23439#23320
TOTALS3023182+2841
📊

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