Boston Marathon logo
BOSTON MARATHON 2025

Kathy Clark

Bib: 25499•F

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:03
Rank: #25552
Start → 5K
31:03 | 10:00/mi
10K· 6.21 mi
1:02:36
Rank: #25598 (-46)
5K → 10K
31:33 | 10:09/mi
15K· 9.32 mi
1:37:13
Rank: #26150 (-552)
10K → 15K
34:37 | 11:09/mi
20K· 12.43 mi
2:15:37
Rank: #26659 (-509)
15K → 20K
38:24 | 12:22/mi
Half· 13.11 mi
2:23:40
Rank: #26708 (-49)
20K → Half
8:03 | 11:48/mi
25K· 15.53 mi
2:53:19
Rank: #26724 (-16)
Half → 25K
29:39 | 12:14/mi
30K· 18.64 mi
3:34:33
Rank: #26783 (-59)
25K → 30K
41:14 | 13:16/mi
20M
3:52:51
Rank: #26827 (-44)
30K → 20M
18:18 | 13:28/mi
21M
4:07:17
Rank: #26836 (-9)
20M → 21M
14:26 | 14:26/mi
35K· 21.75 mi
4:15:52
Rank: #26795 (+41)
21M → 35K
8:35 | 11:28/mi
23M
4:31:24
Rank: #26732 (+63)
35K → 23M
15:32 | 12:24/mi
24M
4:43:43
Rank: #26709 (+23)
23M → 24M
12:19 | 12:19/mi
40K· 24.85 mi
4:54:14
Rank: #26687 (+22)
24M → 40K
10:31 | 12:18/mi
25.2M
4:58:56
Rank: #26681 (+6)
40K → 25.2M
4:42 | 13:38/mi
Finish· 26.22 mi
5:11:04
Rank: #26695 (-14)
25.2M → Finish
12:08 | 11:54/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:23:40
Pace10:58 /mi
2nd Half
Distance13.11 mi
Time2:47:24
Pace12:46 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:4031:0310:0031:03
10:00
-
10K
6.21 mi12:03:131:02:3610:0431:33
10:09
+0:09
15K
9.32 mi12:37:501:37:1310:2634:37
11:09
+1:00
20K
12.43 mi13:16:142:15:3710:5538:24
12:22
+1:13
Half
13.11 mi13:24:172:23:4010:588:03
11:48
-0:34
25K
15.53 mi13:53:562:53:1911:0929:39
12:14
+0:26
30K
18.64 mi14:35:103:34:3311:3141:14
13:16
+1:02
20M
20.00 mi14:53:283:52:5111:3918:18
13:28
+0:12
21M
21.00 mi15:07:544:07:1711:4714:26
14:26
+0:58
35K
21.75 mi15:16:294:15:5211:468:35
11:28
-2:58
23M
23.00 mi15:32:014:31:2411:4815:32
12:24
+0:56
24M
24.00 mi15:44:204:43:4311:4912:19
12:19
-0:05
40K
24.85 mi15:54:514:54:1411:5010:31
12:18
-0:01
25.2M
25.20 mi15:59:334:58:5611:524:42
13:38
+1:20
Finish
26.22 mi16:11:415:11:0411:5212:08
11:54
-1:44

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

10:00 /mi

Average Pace

11:52 /mi

Slowest Pace

14:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:48

34% of race

Time at Steady Pace

2:06:36

41% of race

Time at Slower Pace

1:18:40

25% of race

Average Pace: 11:52 /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 mi11:31:4031:0310:0031:03
10:00
#25552
10K
6.21 mi12:03:131:02:3610:0431:33
10:09
#25598
15K
9.32 mi12:37:501:37:1310:2634:37
11:09
#26150
20K
12.43 mi13:16:142:15:3710:5538:24
12:22
#26659
Half
13.11 mi13:24:172:23:4010:588:03
11:48
#26708
25K
15.53 mi13:53:562:53:1911:0929:39
12:14
#26724
30K
18.64 mi14:35:103:34:3311:3141:14
13:16
#26783
20M
20.00 mi14:53:283:52:5111:3918:18
13:28
#26827
21M
21.00 mi15:07:544:07:1711:4714:26
14:26
#26836
35K
21.75 mi15:16:294:15:5211:468:35
11:28
#26795
23M
23.00 mi15:32:014:31:2411:4815:32
12:24
#26732
24M
24.00 mi15:44:204:43:4311:4912:19
12:19
#26709
40K
24.85 mi15:54:514:54:1411:5010:31
12:18
#26687
25.2M
25.20 mi15:59:334:58:5611:524:42
13:38
#26681
Finish
26.22 mi16:11:415:11:0411:5212:08
11:54
#26695
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi25552105091050926856(Top 95%)11288(Top 92%)11288(Top 1136%)
10K6.21 mi3.10 mi25598-4610558-4910558-4925631(Top 90%)10597(Top 87%)10597(Top 1066%)
15K9.32 mi3.11 mi26150-55210864-30610864-30626856(Top 95%)11288(Top 92%)11288(Top 1136%)
20K12.43 mi3.11 mi26659-50911152-28811152-28827404(Top 96%)11647(Top 95%)11647(Top 1172%)
Half13.11 mi0.68 mi26708-4911181-2911181-2927286(Top 96%)11582(Top 95%)11582(Top 1165%)
25K15.53 mi2.42 mi26724-1611214-3311214-3326662(Top 94%)11228(Top 92%)11228(Top 1130%)
30K18.64 mi3.11 mi26783-5911275-6111275-6126930(Top 95%)11450(Top 94%)11450(Top 1152%)
20M20.00 mi1.36 mi26827-4411308-3311308-3326856(Top 95%)11480(Top 94%)11480(Top 1155%)
21M21.00 mi1.00 mi26836-911320-1211320-1226643(Top 94%)11393(Top 93%)11393(Top 1146%)
35K21.75 mi0.75 mi26795+4111306+1411306+1425042(Top 88%)10611(Top 87%)10611(Top 1068%)
23M23.00 mi1.25 mi26732+6311276+3011276+3025661(Top 90%)10939(Top 89%)10939(Top 1101%)
24M24.00 mi1.00 mi26709+23112761127626070(Top 92%)11160(Top 91%)11160(Top 1123%)
40K24.85 mi0.85 mi26687+2211270+611270+625370(Top 89%)10856(Top 89%)10856(Top 1092%)
25.2M25.20 mi0.35 mi26681+611269+111269+125811(Top 91%)11094(Top 91%)11094(Top 1116%)
Finish26.22 mi1.02 mi26695-1411285-1611285-1626681(Top 94%)11464(Top 94%)11464(Top 1153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21stories
+97ft-345ft

Overall

26856

Females

11288

F55-59

11288

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

25631

Females

10597

F55-59

10597

10K→15K

6.2 - 9.3 mi

Top 95%
×3stories
+67ft-78ft

Overall

26856

Females

11288

F55-59

11288

15K→20K

9.3 - 12.4 mi

Top 96%
×5stories
+106ft-86ft

Overall

27404

Females

11647

F55-59

11647

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

27286

Females

11582

F55-59

11582

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

26662

Females

11228

F55-59

11228

25K→30K

15.5 - 18.6 mi

Top 95%
×9stories
+181ft-148ft

Overall

26930

Females

11450

F55-59

11450

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

26856

Females

11480

F55-59

11480

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

26643

Females

11393

F55-59

11393

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

25042

Females

10611

F55-59

10611

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25661

Females

10939

F55-59

10939

23M→24M

23.0 - 24.0 mi

Top 92%
×6stories
+12ft-82ft

Overall

26070

Females

11160

F55-59

11160

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25370

Females

10856

F55-59

10856

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25811

Females

11094

F55-59

11094

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2stories
+22ft-21ft

Overall

26681

Females

11464

F55-59

11464

Passing Analysis

Category:
Athletes Passed
638
Passed By
1781
Net Change
-1143
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25552
5K → 10K187233-46#25552#25598
10K → 15K20572-552#25598#26150
15K → 20K19528-509#26150#26659
20K → Half857-49#26659#26708
Half → 25K8399-16#26708#26724
25K → 30K68127-59#26724#26783
30K → 20M1761-44#26783#26827
20M → 21M2534-9#26827#26836
21M → 35K421+41#26836#26795
35K → 23M729+63#26795#26732
23M → 24M3714+23#26732#26709
24M → 40K3311+22#26709#26687
40K → 25.2M104+6#26687#26681
25.2M → Finish1731-14#26681#26695
TOTALS6381781-1143
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing