Boston Marathon logo
BOSTON MARATHON 2025

Katherine Deegan

Bib: 10218•F

CO

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 11%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 3%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #5010
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
40:45
Rank: #4203 (+807)
5K → 10K
20:06 | 6:28/mi
15K· 9.32 mi
1:00:50
Rank: #3868 (+335)
10K → 15K
20:05 | 6:28/mi
20K· 12.43 mi
1:21:03
Rank: #3669 (+199)
15K → 20K
20:13 | 6:30/mi
Half· 13.11 mi
1:25:22
Rank: #3607 (+62)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:41:07
Rank: #3444 (+163)
Half → 25K
15:45 | 6:30/mi
30K· 18.64 mi
2:01:59
Rank: #3289 (+155)
25K → 30K
20:52 | 6:43/mi
20M
2:12:06
Rank: #3528 (-239)
30K → 20M
10:07 | 7:27/mi
21M
2:19:10
Rank: #3413 (+115)
20M → 21M
7:04 | 7:04/mi
35K· 21.75 mi
2:24:08
Rank: #3374 (+39)
21M → 35K
4:58 | 6:38/mi
23M
2:32:47
Rank: #3308 (+66)
35K → 23M
8:39 | 6:55/mi
24M
2:39:37
Rank: #3283 (+25)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
2:45:36
Rank: #3281 (+2)
24M → 40K
5:59 | 7:00/mi
25.2M
2:48:12
Rank: #3265 (+16)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:55:03
Rank: #3258 (+7)
25.2M → Finish
6:51 | 6:43/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
Time1:25:22
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:29:41
Pace6:50 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3620:396:3920:39
6:39
-
10K
6.21 mi11:06:4240:456:3320:06
6:28
-0:11
15K
9.32 mi11:26:471:00:506:3220:05
6:28
0:00
20K
12.43 mi11:47:001:21:036:3120:13
6:30
+0:02
Half
13.11 mi11:51:191:25:226:314:19
6:20
-0:10
25K
15.53 mi12:07:041:41:076:3115:45
6:30
+0:10
30K
18.64 mi12:27:562:01:596:3320:52
6:43
+0:13
20M
20.00 mi12:38:032:12:066:3610:07
7:27
+0:44
21M
21.00 mi12:45:072:19:106:387:04
7:04
-0:23
35K
21.75 mi12:50:052:24:086:384:58
6:38
-0:26
23M
23.00 mi12:58:442:32:476:398:39
6:55
+0:17
24M
24.00 mi13:05:342:39:376:396:50
6:50
-0:05
40K
24.85 mi13:11:332:45:366:405:59
7:00
+0:10
25.2M
25.20 mi13:14:092:48:126:402:36
7:32
+0:32
Finish
26.22 mi13:21:002:55:036:416:51
6:43
-0:49

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

6:20 /mi

Average Pace

6:41 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:17

85% of race

Time at Steady Pace

23:10

13% of race

Time at Slower Pace

2:36

1% of race

Average Pace: 6:41 /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 mi10:46:3620:396:3920:39
6:39
#5010
10K
6.21 mi11:06:4240:456:3320:06
6:28
#4203
15K
9.32 mi11:26:471:00:506:3220:05
6:28
#3868
20K
12.43 mi11:47:001:21:036:3120:13
6:30
#3669
Half
13.11 mi11:51:191:25:226:314:19
6:20
#3607
25K
15.53 mi12:07:041:41:076:3115:45
6:30
#3444
30K
18.64 mi12:27:562:01:596:3320:52
6:43
#3289
20M
20.00 mi12:38:032:12:066:3610:07
7:27
#3528
21M
21.00 mi12:45:072:19:106:387:04
7:04
#3413
35K
21.75 mi12:50:052:24:086:384:58
6:38
#3374
23M
23.00 mi12:58:442:32:476:398:39
6:55
#3308
24M
24.00 mi13:05:342:39:376:396:50
6:50
#3283
40K
24.85 mi13:11:332:45:366:405:59
7:00
#3281
25.2M
25.20 mi13:14:092:48:126:402:36
7:32
#3265
Finish
26.22 mi13:21:002:55:036:416:51
6:43
#3258
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi50103183183350(Top 12%)165(Top 1%)165(Top 3%)
10K6.21 mi3.10 mi4203+807241+77241+773530(Top 12%)181(Top 1%)181(Top 3%)
15K9.32 mi3.11 mi3868+335211+30211+303350(Top 12%)165(Top 1%)165(Top 3%)
20K12.43 mi3.11 mi3669+199192+19192+193183(Top 11%)157(Top 1%)157(Top 3%)
Half13.11 mi0.68 mi3607+62185+7185+72728(Top 10%)117(Top 1.0%)117(Top 2%)
25K15.53 mi2.42 mi3444+163170+15170+152889(Top 10%)134(Top 1%)134(Top 2%)
30K18.64 mi3.11 mi3289+155166+4166+42973(Top 10%)165(Top 1%)165(Top 3%)
20M20.00 mi1.36 mi3528-239189-23189-236673(Top 23%)1025(Top 8%)1025(Top 19%)
21M21.00 mi1.00 mi3413+115181+8181+82566(Top 9%)167(Top 1%)167(Top 3%)
35K21.75 mi0.75 mi3374+391811813205(Top 11%)254(Top 2%)254(Top 5%)
23M23.00 mi1.25 mi3308+661811813286(Top 12%)284(Top 2%)284(Top 5%)
24M24.00 mi1.00 mi3283+25184-3184-33731(Top 13%)398(Top 3%)398(Top 7%)
40K24.85 mi0.85 mi3281+21841843925(Top 14%)475(Top 4%)475(Top 9%)
25.2M25.20 mi0.35 mi3265+16183+1183+13647(Top 13%)449(Top 4%)449(Top 8%)
Finish26.22 mi1.02 mi3258+7194-11194-114039(Top 14%)557(Top 5%)557(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3350

Females

165

F18-39

165

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3530

Females

181

F18-39

181

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3350

Females

165

F18-39

165

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3183

Females

157

F18-39

157

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2728

Females

117

F18-39

117

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2889

Females

134

F18-39

134

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2973

Females

165

F18-39

165

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6673

Females

1025

F18-39

1025

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2566

Females

167

F18-39

167

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3205

Females

254

F18-39

254

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3286

Females

284

F18-39

284

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3731

Females

398

F18-39

398

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3925

Females

475

F18-39

475

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3647

Females

449

F18-39

449

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

4039

Females

557

F18-39

557

Passing Analysis

Category:
Athletes Passed
2272
Passed By
520
Net Change
+1752
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5010
5K → 10K8125+807#5010#4203
10K → 15K3416+335#4203#3868
15K → 20K21314+199#3868#3669
20K → Half631+62#3669#3607
Half → 25K17411+163#3607#3444
25K → 30K19035+155#3444#3289
30K → 20M25264-239#3289#3528
20M → 21M12813+115#3528#3413
21M → 35K5213+39#3413#3374
35K → 23M9529+66#3374#3308
23M → 24M5530+25#3308#3283
24M → 40K3937+2#3283#3281
40K → 25.2M2913+16#3281#3265
25.2M → Finish5649+7#3265#3258
TOTALS2272520+1752
📊

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