Boston Marathon logo
BOSTON MARATHON 2025

Kaitlin Murtha

Bib: 17703•F

MA

0:00
0:00
/ mi
Be the first to cheer!
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
24:38
Rank: #16016
Start → 5K
7:56/mi
24:38 split
10K· 6.21 mi
48:54
Rank: #15419 (+597)
5K → 10K
7:49/mi
24:16 split
15K· 9.32 mi
1:13:17
Rank: #15195 (+224)
10K → 15K
7:51/mi
24:23 split
20K· 12.43 mi
1:38:20
Rank: #15220 (-25)
15K → 20K
8:04/mi
25:03 split
Half· 13.11 mi
1:43:55
Rank: #15337 (-117)
20K → Half
8:11/mi
5:35 split
25K· 15.53 mi
2:04:19
Rank: #15565 (-228)
Half → 25K
8:25/mi
20:24 split
30K· 18.64 mi
2:32:14
Rank: #15983 (-418)
25K → 30K
8:59/mi
27:55 split
20M
2:44:53
Rank: #16163 (-180)
30K → 20M
9:19/mi
12:39 split
21M
2:54:58
Rank: #16278 (-115)
20M → 21M
10:05/mi
10:05 split
35K· 21.75 mi
3:01:54
Rank: #16381 (-103)
21M → 35K
9:16/mi
6:56 split
23M
3:14:48
Rank: #16817 (-436)
35K → 23M
10:18/mi
12:54 split
24M
3:24:24
Rank: #17001 (-184)
23M → 24M
9:36/mi
9:36 split
40K· 24.85 mi
3:34:18
Rank: #17532 (-531)
24M → 40K
11:35/mi
9:54 split
25.2M
3:38:06
Rank: #17599 (-67)
40K → 25.2M
11:01/mi
3:48 split
Finish· 26.22 mi
3:47:52
Rank: #17805 (-206)
25.2M → Finish
9:35/mi
9:46 split

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
Time1:43:55
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time2:03:57
Pace9:27 /mi
📊Positive Split: 19.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4324:387:5624:38
7:56
-
10K
6.21 mi11:42:5948:547:5224:16
7:49
-0:07
15K
9.32 mi12:07:221:13:177:5224:23
7:51
+0:02
20K
12.43 mi12:32:251:38:207:5525:03
8:04
+0:13
Half
13.11 mi12:38:001:43:557:565:35
8:11
+0:07
25K
15.53 mi12:58:242:04:198:0020:24
8:25
+0:14
30K
18.64 mi13:26:192:32:148:1027:55
8:59
+0:34
20M
20.00 mi13:38:582:44:538:1512:39
9:19
+0:20
21M
21.00 mi13:49:032:54:588:2010:05
10:05
+0:46
35K
21.75 mi13:55:593:01:548:226:56
9:16
-0:49
23M
23.00 mi14:08:533:14:488:2812:54
10:18
+1:02
24M
24.00 mi14:18:293:24:248:319:36
9:36
-0:42
40K
24.85 mi14:28:233:34:188:379:54
11:35
+1:59
25.2M
25.20 mi14:32:113:38:068:393:48
11:01
-0:34
Finish
26.22 mi14:41:573:47:528:429:46
9:35
-1:26

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

7:49 /mi

Average Pace

8:42 /mi

Slowest Pace

11:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:19

55% of race

Time at Steady Pace

1:06:52

29% of race

Time at Slower Pace

36:41

16% of race

Average Pace: 8:41 /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 mi11:18:4324:387:5624:38
7:56
#16016
10K
6.21 mi11:42:5948:547:5224:16
7:49
#15419
15K
9.32 mi12:07:221:13:177:5224:23
7:51
#15195
20K
12.43 mi12:32:251:38:207:5525:03
8:04
#15220
Half
13.11 mi12:38:001:43:557:565:35
8:11
#15337
25K
15.53 mi12:58:242:04:198:0020:24
8:25
#15565
30K
18.64 mi13:26:192:32:148:1027:55
8:59
#15983
20M
20.00 mi13:38:582:44:538:1512:39
9:19
#16163
21M
21.00 mi13:49:032:54:588:2010:05
10:05
#16278
35K
21.75 mi13:55:593:01:548:226:56
9:16
#16381
23M
23.00 mi14:08:533:14:488:2812:54
10:18
#16817
24M
24.00 mi14:18:293:24:248:319:36
9:36
#17001
40K
24.85 mi14:28:233:34:188:379:54
11:35
#17532
25.2M
25.20 mi14:32:113:38:068:393:48
11:01
#17599
Finish
26.22 mi14:41:573:47:528:429:46
9:35
#17805
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi160165164516414817(Top 52%)4489(Top 37%)4489(Top 82%)
10K6.21 mi3.10 mi15419+5974788+3764788+37614949(Top 53%)4508(Top 37%)4508(Top 82%)
15K9.32 mi3.11 mi15195+2244679+1094679+10914817(Top 52%)4489(Top 37%)4489(Top 82%)
20K12.43 mi3.11 mi15220-254708-294708-2915384(Top 54%)4855(Top 40%)4855(Top 89%)
Half13.11 mi0.68 mi15337-1174772-644772-6417241(Top 61%)5906(Top 48%)5906(Top 108%)
25K15.53 mi2.42 mi15565-2284924-1524924-15216674(Top 59%)5676(Top 46%)5676(Top 104%)
30K18.64 mi3.11 mi15983-4185212-2885212-28817626(Top 62%)6373(Top 52%)6373(Top 117%)
20M20.00 mi1.36 mi16163-1805364-1525364-15218340(Top 65%)6913(Top 57%)6913(Top 126%)
21M21.00 mi1.00 mi16278-1155458-945458-9418622(Top 66%)7135(Top 58%)7135(Top 130%)
35K21.75 mi0.75 mi16381-1035532-745532-7419457(Top 69%)7689(Top 63%)7689(Top 141%)
23M23.00 mi1.25 mi16817-4365822-2905822-29021419(Top 75%)8764(Top 72%)8764(Top 160%)
24M24.00 mi1.00 mi17001-1845957-1355957-13519991(Top 70%)8073(Top 66%)8073(Top 148%)
40K24.85 mi0.85 mi17532-5316298-3416298-34124270(Top 85%)10302(Top 84%)10302(Top 188%)
25.2M25.20 mi0.35 mi17599-676347-496347-4920719(Top 73%)8503(Top 70%)8503(Top 155%)
Finish26.22 mi1.02 mi17805-2066468-1216468-12121493(Top 76%)8900(Top 73%)8900(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14817

Females

4489

F18-39

4489

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14949

Females

4508

F18-39

4508

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14817

Females

4489

F18-39

4489

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

15384

Females

4855

F18-39

4855

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17241

Females

5906

F18-39

5906

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

16674

Females

5676

F18-39

5676

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17626

Females

6373

F18-39

6373

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18340

Females

6913

F18-39

6913

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18622

Females

7135

F18-39

7135

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19457

Females

7689

F18-39

7689

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

21419

Females

8764

F18-39

8764

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

19991

Females

8073

F18-39

8073

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24270

Females

10302

F18-39

10302

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20719

Females

8503

F18-39

8503

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21493

Females

8900

F18-39

8900

Passing Analysis

Category:
Athletes Passed
1757
Passed By
3546
Net Change
-1789
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16016
5K → 10K708111+597#16016#15419
10K → 15K31995+224#15419#15195
15K → 20K198223-25#15195#15220
20K → Half12129-117#15220#15337
Half → 25K109337-228#15337#15565
25K → 30K123541-418#15565#15983
30K → 20M70250-180#15983#16163
20M → 21M66181-115#16163#16278
21M → 35K40143-103#16278#16381
35K → 23M32468-436#16381#16817
23M → 24M38222-184#16817#17001
24M → 40K7538-531#17001#17532
40K → 25.2M1683-67#17532#17599
25.2M → Finish19225-206#17599#17805
TOTALS17573546-1789
📊

Passing Visuals

Category:
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