Boston Marathon logo
BOSTON MARATHON 2025

Liz Arnold

Bib: 10141•F

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 12%
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
20:59
Rank: #5961
Start → 5K
20:59 | 6:45/mi
10K· 6.21 mi
41:41
Rank: #5455 (+506)
5K → 10K
20:42 | 6:40/mi
15K· 9.32 mi
1:02:38
Rank: #5452 (+3)
10K → 15K
20:57 | 6:45/mi
20K· 12.43 mi
1:23:37
Rank: #5262 (+190)
15K → 20K
20:59 | 6:45/mi
Half· 13.11 mi
1:28:11
Rank: #5244 (+18)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:44:28
Rank: #5028 (+216)
Half → 25K
16:17 | 6:43/mi
30K· 18.64 mi
2:05:43
Rank: #4693 (+335)
25K → 30K
21:15 | 6:50/mi
20M
2:14:53
Rank: #4464 (+229)
30K → 20M
9:10 | 6:45/mi
21M
2:21:43
Rank: #4193 (+271)
20M → 21M
6:50 | 6:50/mi
35K· 21.75 mi
2:26:27
Rank: #4074 (+119)
21M → 35K
4:44 | 6:20/mi
23M
2:34:36
Rank: #3820 (+254)
35K → 23M
8:09 | 6:31/mi
24M
2:40:56
Rank: #3644 (+176)
23M → 24M
6:20 | 6:20/mi
40K· 24.85 mi
2:46:24
Rank: #3473 (+171)
24M → 40K
5:28 | 6:24/mi
25.2M
2:48:51
Rank: #3422 (+51)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:55:15
Rank: #3306 (+116)
25.2M → Finish
6:24 | 6:17/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 Half
Distance13.11 mi
Time1:28:11
Pace6:44 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:27:04
Pace6:39 /mi
📊Negative Split: 1.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:0320:596:4520:59
6:45
-
10K
6.21 mi11:07:4541:416:4220:42
6:40
-0:05
15K
9.32 mi11:28:421:02:386:4320:57
6:45
+0:05
20K
12.43 mi11:49:411:23:376:4420:59
6:45
0:00
Half
13.11 mi11:54:151:28:116:444:34
6:42
-0:03
25K
15.53 mi12:10:321:44:286:4316:17
6:43
+0:01
30K
18.64 mi12:31:472:05:436:4521:15
6:50
+0:07
20M
20.00 mi12:40:572:14:536:459:10
6:45
-0:05
21M
21.00 mi12:47:472:21:436:456:50
6:50
+0:05
35K
21.75 mi12:52:312:26:276:444:44
6:20
-0:30
23M
23.00 mi13:00:402:34:366:438:09
6:31
+0:11
24M
24.00 mi13:07:002:40:566:426:20
6:20
-0:11
40K
24.85 mi13:12:282:46:246:425:28
6:24
+0:04
25.2M
25.20 mi13:14:552:48:516:422:27
7:06
+0:42
Finish
26.22 mi13:21:192:55:156:416:24
6:17
-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

6:17 /mi

Average Pace

6:41 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:48

99% of race

Time at Steady Pace

2:27

1% of race

Time at Slower Pace

0:00

0% 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 mi10:47:0320:596:4520:59
6:45
#5961
10K
6.21 mi11:07:4541:416:4220:42
6:40
#5455
15K
9.32 mi11:28:421:02:386:4320:57
6:45
#5452
20K
12.43 mi11:49:411:23:376:4420:59
6:45
#5262
Half
13.11 mi11:54:151:28:116:444:34
6:42
#5244
25K
15.53 mi12:10:321:44:286:4316:17
6:43
#5028
30K
18.64 mi12:31:472:05:436:4521:15
6:50
#4693
20M
20.00 mi12:40:572:14:536:459:10
6:45
#4464
21M
21.00 mi12:47:472:21:436:456:50
6:50
#4193
35K
21.75 mi12:52:312:26:276:444:44
6:20
#4074
23M
23.00 mi13:00:402:34:366:438:09
6:31
#3820
24M
24.00 mi13:07:002:40:566:426:20
6:20
#3644
40K
24.85 mi13:12:282:46:246:425:28
6:24
#3473
25.2M
25.20 mi13:14:552:48:516:422:27
7:06
#3422
Finish
26.22 mi13:21:192:55:156:416:24
6:17
#3306
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi59614654655524(Top 19%)443(Top 4%)443(Top 8%)
10K6.21 mi3.10 mi5455+506396+69396+695020(Top 18%)325(Top 3%)325(Top 6%)
15K9.32 mi3.11 mi5452+3398-2398-25524(Top 19%)443(Top 4%)443(Top 8%)
20K12.43 mi3.11 mi5262+190377+21377+214887(Top 17%)353(Top 3%)353(Top 6%)
Half13.11 mi0.68 mi5244+18376+1376+15287(Top 19%)393(Top 3%)393(Top 7%)
25K15.53 mi2.42 mi5028+216354+22354+224268(Top 15%)295(Top 2%)295(Top 5%)
30K18.64 mi3.11 mi4693+335325+29325+293696(Top 13%)265(Top 2%)265(Top 5%)
20M20.00 mi1.36 mi4464+229299+26299+262689(Top 9%)159(Top 1%)159(Top 3%)
21M21.00 mi1.00 mi4193+271271+28271+281665(Top 6%)88(Top 0.7%)88(Top 2%)
35K21.75 mi0.75 mi4074+119261+10261+101760(Top 6%)104(Top 0.9%)104(Top 2%)
23M23.00 mi1.25 mi3820+254239+22239+221506(Top 5%)89(Top 0.7%)89(Top 2%)
24M24.00 mi1.00 mi3644+176223+16223+161436(Top 5%)88(Top 0.7%)88(Top 2%)
40K24.85 mi0.85 mi3473+171209+14209+141262(Top 4%)82(Top 0.7%)82(Top 1%)
25.2M25.20 mi0.35 mi3422+51208+1208+11870(Top 7%)163(Top 1%)163(Top 3%)
Finish26.22 mi1.02 mi3306+116202+6202+61846(Top 6%)135(Top 1%)135(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5524

Females

443

F18-39

443

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5020

Females

325

F18-39

325

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5524

Females

443

F18-39

443

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4887

Females

353

F18-39

353

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5287

Females

393

F18-39

393

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4268

Females

295

F18-39

295

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3696

Females

265

F18-39

265

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2689

Females

159

F18-39

159

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1665

Females

88

F18-39

88

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1760

Females

104

F18-39

104

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1506

Females

89

F18-39

89

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1436

Females

88

F18-39

88

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1262

Females

82

F18-39

82

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1870

Females

163

F18-39

163

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1846

Females

135

F18-39

135

Passing Analysis

Category:
Athletes Passed
2940
Passed By
285
Net Change
+2655
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5961
5K → 10K54842+506#5961#5455
10K → 15K117114+3#5455#5452
15K → 20K23444+190#5452#5262
20K → Half3820+18#5262#5244
Half → 25K24024+216#5244#5028
25K → 30K36126+335#5028#4693
30K → 20M2301+229#4693#4464
20M → 21M2721+271#4464#4193
21M → 35K1212+119#4193#4074
35K → 23M2540+254#4074#3820
23M → 24M1782+176#3820#3644
24M → 40K1710+171#3644#3473
40K → 25.2M532+51#3473#3422
25.2M → Finish1237+116#3422#3306
TOTALS2940285+2655
📊

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