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BOSTON MARATHON 2025

Kathy Coburn

Bib: 23462•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Masters (Masters Women)
#0 / 6759
Top 32%
Division (F50-54)
#0 / 1303
Top 25%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:24
Rank: #19867
Start → 5K
26:24 | 8:30/mi
10K· 6.21 mi
52:52
Rank: #19889 (-22)
5K → 10K
26:28 | 8:31/mi
15K· 9.32 mi
1:19:07
Rank: #19588 (+301)
10K → 15K
26:15 | 8:27/mi
20K· 12.43 mi
1:45:26
Rank: #19172 (+416)
15K → 20K
26:19 | 8:28/mi
Half· 13.11 mi
1:51:09
Rank: #19121 (+51)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:11:38
Rank: #18754 (+367)
Half → 25K
20:29 | 8:27/mi
30K· 18.64 mi
2:38:00
Rank: #17942 (+812)
25K → 30K
26:22 | 8:29/mi
20M
2:49:41
Rank: #17667 (+275)
30K → 20M
11:41 | 8:36/mi
21M
2:58:16
Rank: #17291 (+376)
20M → 21M
8:35 | 8:35/mi
35K· 21.75 mi
3:04:28
Rank: #17162 (+129)
21M → 35K
6:12 | 8:17/mi
23M
3:14:44
Rank: #16794 (+368)
35K → 23M
10:16 | 8:12/mi
24M
3:22:53
Rank: #16577 (+217)
23M → 24M
8:09 | 8:09/mi
40K· 24.85 mi
3:29:58
Rank: #16376 (+201)
24M → 40K
7:05 | 8:17/mi
25.2M
3:33:03
Rank: #16302 (+74)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:40:59
Rank: #16116 (+186)
25.2M → Finish
7:56 | 7:47/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:51:09
Pace8:29 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:49:50
Pace8:23 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1826:248:3026:24
8:30
-
10K
6.21 mi11:49:4652:528:3026:28
8:31
+0:01
15K
9.32 mi12:16:011:19:078:2926:15
8:27
-0:04
20K
12.43 mi12:42:201:45:268:2926:19
8:28
+0:01
Half
13.11 mi12:48:031:51:098:295:43
8:23
-0:05
25K
15.53 mi13:08:322:11:388:2820:29
8:27
+0:04
30K
18.64 mi13:34:542:38:008:2926:22
8:29
+0:02
20M
20.00 mi13:46:352:49:418:2911:41
8:36
+0:07
21M
21.00 mi13:55:102:58:168:298:35
8:35
-0:01
35K
21.75 mi14:01:223:04:288:296:12
8:17
-0:18
23M
23.00 mi14:11:383:14:448:2810:16
8:12
-0:05
24M
24.00 mi14:19:473:22:538:278:09
8:09
-0:03
40K
24.85 mi14:26:523:29:588:277:05
8:17
+0:08
25.2M
25.20 mi14:29:573:33:038:273:05
8:56
+0:39
Finish
26.22 mi14:37:533:40:598:267:56
7:47
-1:09

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

7:47 /mi

Average Pace

8:26 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:38

89% of race

Time at Steady Pace

23:21

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:26 /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 mi11:23:1826:248:3026:24
8:30
#19867
10K
6.21 mi11:49:4652:528:3026:28
8:31
#19889
15K
9.32 mi12:16:011:19:078:2926:15
8:27
#19588
20K
12.43 mi12:42:201:45:268:2926:19
8:28
#19172
Half
13.11 mi12:48:031:51:098:295:43
8:23
#19121
25K
15.53 mi13:08:322:11:388:2820:29
8:27
#18754
30K
18.64 mi13:34:542:38:008:2926:22
8:29
#17942
20M
20.00 mi13:46:352:49:418:2911:41
8:36
#17667
21M
21.00 mi13:55:102:58:168:298:35
8:35
#17291
35K
21.75 mi14:01:223:04:288:296:12
8:17
#17162
23M
23.00 mi14:11:383:14:448:2810:16
8:12
#16794
24M
24.00 mi14:19:473:22:538:278:09
8:09
#16577
40K
24.85 mi14:26:523:29:588:277:05
8:17
#16376
25.2M
25.20 mi14:29:573:33:038:273:05
8:56
#16302
Finish
26.22 mi14:37:533:40:598:267:56
7:47
#16116
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi198677426742619029(Top 67%)6916(Top 57%)6916(Top 531%)
10K6.21 mi3.10 mi19889-227403+237403+2319912(Top 70%)7416(Top 61%)7416(Top 569%)
15K9.32 mi3.11 mi19588+3017227+1767227+17619029(Top 67%)6916(Top 57%)6916(Top 531%)
20K12.43 mi3.11 mi19172+4167001+2267001+22618024(Top 63%)6352(Top 52%)6352(Top 487%)
Half13.11 mi0.68 mi19121+516975+266975+2618480(Top 65%)6594(Top 54%)6594(Top 506%)
25K15.53 mi2.42 mi18754+3676776+1996776+19916863(Top 59%)5774(Top 47%)5774(Top 443%)
30K18.64 mi3.11 mi17942+8126368+4086368+40814672(Top 52%)4726(Top 39%)4726(Top 363%)
20M20.00 mi1.36 mi17667+2756244+1246244+12414448(Top 51%)4758(Top 39%)4758(Top 365%)
21M21.00 mi1.00 mi17291+3766049+1956049+19511040(Top 39%)3135(Top 26%)3135(Top 241%)
35K21.75 mi0.75 mi17162+1296000+496000+4914221(Top 50%)4809(Top 39%)4809(Top 369%)
23M23.00 mi1.25 mi16794+3685807+1935807+19311395(Top 40%)3441(Top 28%)3441(Top 264%)
24M24.00 mi1.00 mi16577+2175703+1045703+10412282(Top 43%)3952(Top 32%)3952(Top 303%)
40K24.85 mi0.85 mi16376+2015620+835620+8312107(Top 43%)3980(Top 33%)3980(Top 305%)
25.2M25.20 mi0.35 mi16302+745585+355585+3511576(Top 41%)3813(Top 31%)3813(Top 293%)
Finish26.22 mi1.02 mi16116+1865497+885497+8811381(Top 40%)3667(Top 30%)3667(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

19029

Females

6916

F50-54

6916

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

19912

Females

7416

F50-54

7416

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

19029

Females

6916

F50-54

6916

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

18024

Females

6352

F50-54

6352

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

18480

Females

6594

F50-54

6594

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16863

Females

5774

F50-54

5774

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

14672

Females

4726

F50-54

4726

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14448

Females

4758

F50-54

4758

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

11040

Females

3135

F50-54

3135

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14221

Females

4809

F50-54

4809

35K→23M

21.8 - 23.0 mi

Top 40%
×5stories
+23ft-63ft

Overall

11395

Females

3441

F50-54

3441

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

12282

Females

3952

F50-54

3952

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12107

Females

3980

F50-54

3980

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11576

Females

3813

F50-54

3813

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

11381

Females

3667

F50-54

3667

Passing Analysis

Category:
Athletes Passed
4219
Passed By
468
Net Change
+3751
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19867
5K → 10K267289-22#19867#19889
10K → 15K36968+301#19889#19588
15K → 20K44529+416#19588#19172
20K → Half6615+51#19172#19121
Half → 25K38215+367#19121#18754
25K → 30K8175+812#18754#17942
30K → 20M28712+275#17942#17667
20M → 21M3782+376#17667#17291
21M → 35K1378+129#17291#17162
35K → 23M3702+368#17162#16794
23M → 24M2203+217#16794#16577
24M → 40K2076+201#16577#16376
40K → 25.2M806+74#16376#16302
25.2M → Finish1948+186#16302#16116
TOTALS4219468+3751
📊

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