Boston Marathon logo
BOSTON MARATHON 2025

Haixia Li

Bib: 9659•F

NJ

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 20%
Gender (Female)
#0 / 12228
Top 5%
Masters (Masters Women)
#0 / 6759
Top 1%
Division (F45-49)
#0 / 1813
Top 1%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:24
Rank: #6987
Start → 5K
21:24 | 6:53/mi
10K· 6.21 mi
42:08
Rank: #6119 (+868)
5K → 10K
20:44 | 6:40/mi
15K· 9.32 mi
1:03:05
Rank: #5906 (+213)
10K → 15K
20:57 | 6:45/mi
20K· 12.43 mi
1:24:24
Rank: #5866 (+40)
15K → 20K
21:19 | 6:52/mi
Half· 13.11 mi
1:29:01
Rank: #5875 (-9)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:45:58
Rank: #5909 (-34)
Half → 25K
16:57 | 6:59/mi
30K· 18.64 mi
2:08:37
Rank: #5983 (-74)
25K → 30K
22:39 | 7:17/mi
20M
2:18:41
Rank: #5972 (+11)
30K → 20M
10:04 | 7:24/mi
21M
2:26:28
Rank: #5917 (+55)
20M → 21M
7:47 | 7:47/mi
35K· 21.75 mi
2:31:41
Rank: #5858 (+59)
21M → 35K
5:13 | 6:58/mi
23M
2:40:49
Rank: #5753 (+105)
35K → 23M
9:08 | 7:18/mi
24M
2:48:07
Rank: #5726 (+27)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
2:54:30
Rank: #5693 (+33)
24M → 40K
6:23 | 7:28/mi
25.2M
2:57:22
Rank: #5694 (-1)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:04:57
Rank: #5745 (-51)
25.2M → Finish
7:35 | 7:26/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
Time1:29:01
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:35:56
Pace7:19 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:1621:246:5321:24
6:53
-
10K
6.21 mi11:08:0042:086:4720:44
6:40
-0:13
15K
9.32 mi11:28:571:03:056:4620:57
6:45
+0:05
20K
12.43 mi11:50:161:24:246:4721:19
6:52
+0:07
Half
13.11 mi11:54:531:29:016:474:37
6:46
-0:06
25K
15.53 mi12:11:501:45:586:4916:57
6:59
+0:13
30K
18.64 mi12:34:292:08:376:5422:39
7:17
+0:18
20M
20.00 mi12:44:332:18:416:5610:04
7:24
+0:07
21M
21.00 mi12:52:202:26:286:587:47
7:47
+0:23
35K
21.75 mi12:57:332:31:416:585:13
6:58
-0:49
23M
23.00 mi13:06:412:40:497:009:08
7:18
+0:20
24M
24.00 mi13:13:592:48:077:007:18
7:18
0:00
40K
24.85 mi13:20:222:54:307:016:23
7:28
+0:10
25.2M
25.20 mi13:23:142:57:227:022:52
8:19
+0:51
Finish
26.22 mi13:30:493:04:577:047:35
7:26
-0:53

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

6:40 /mi

Average Pace

7:04 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:11

60% of race

Time at Steady Pace

1:03:07

34% of race

Time at Slower Pace

10:39

6% of race

Average Pace: 7:03 /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 mi10:47:1621:246:5321:24
6:53
#6987
10K
6.21 mi11:08:0042:086:4720:44
6:40
#6119
15K
9.32 mi11:28:571:03:056:4620:57
6:45
#5906
20K
12.43 mi11:50:161:24:246:4721:19
6:52
#5866
Half
13.11 mi11:54:531:29:016:474:37
6:46
#5875
25K
15.53 mi12:11:501:45:586:4916:57
6:59
#5909
30K
18.64 mi12:34:292:08:376:5422:39
7:17
#5983
20M
20.00 mi12:44:332:18:416:5610:04
7:24
#5972
21M
21.00 mi12:52:202:26:286:587:47
7:47
#5917
35K
21.75 mi12:57:332:31:416:585:13
6:58
#5858
23M
23.00 mi13:06:412:40:497:009:08
7:18
#5753
24M
24.00 mi13:13:592:48:077:007:18
7:18
#5726
40K
24.85 mi13:20:222:54:307:016:23
7:28
#5693
25.2M
25.20 mi13:23:142:57:227:022:52
8:19
#5694
Finish
26.22 mi13:30:493:04:577:047:35
7:26
#5745
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi69876846845534(Top 19%)453(Top 4%)453(Top 25%)
10K6.21 mi3.10 mi6119+868499+185499+1855127(Top 18%)346(Top 3%)346(Top 19%)
15K9.32 mi3.11 mi5906+213477+22477+225534(Top 19%)453(Top 4%)453(Top 25%)
20K12.43 mi3.11 mi5866+40478-1478-15894(Top 21%)533(Top 4%)533(Top 29%)
Half13.11 mi0.68 mi5875-9479-1479-15946(Top 21%)544(Top 4%)544(Top 30%)
25K15.53 mi2.42 mi5909-34514-35514-356288(Top 22%)664(Top 5%)664(Top 37%)
30K18.64 mi3.11 mi5983-74541-27541-276400(Top 23%)794(Top 6%)794(Top 44%)
20M20.00 mi1.36 mi5972+11560-19560-196442(Top 23%)932(Top 8%)932(Top 51%)
21M21.00 mi1.00 mi5917+55561-1561-16118(Top 22%)963(Top 8%)963(Top 53%)
35K21.75 mi0.75 mi5858+59554+7554+75214(Top 18%)671(Top 5%)671(Top 37%)
23M23.00 mi1.25 mi5753+105553+1553+15454(Top 19%)800(Top 7%)800(Top 44%)
24M24.00 mi1.00 mi5726+27560-7560-76434(Top 23%)1231(Top 10%)1231(Top 68%)
40K24.85 mi0.85 mi5693+33566-6566-66613(Top 23%)1378(Top 11%)1378(Top 76%)
25.2M25.20 mi0.35 mi5694-1574-8574-87733(Top 27%)1922(Top 16%)1922(Top 106%)
Finish26.22 mi1.02 mi5745-51603-29603-298782(Top 31%)2420(Top 20%)2420(Top 133%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5534

Females

453

F45-49

453

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5127

Females

346

F45-49

346

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5534

Females

453

F45-49

453

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5894

Females

533

F45-49

533

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5946

Females

544

F45-49

544

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6288

Females

664

F45-49

664

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6400

Females

794

F45-49

794

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6442

Females

932

F45-49

932

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6118

Females

963

F45-49

963

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5214

Females

671

F45-49

671

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5454

Females

800

F45-49

800

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6434

Females

1231

F45-49

1231

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6613

Females

1378

F45-49

1378

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7733

Females

1922

F45-49

1922

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8782

Females

2420

F45-49

2420

Passing Analysis

Category:
Athletes Passed
2174
Passed By
932
Net Change
+1242
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6987
5K → 10K8757+868#6987#6119
10K → 15K25441+213#6119#5906
15K → 20K149109+40#5906#5866
20K → Half2029-9#5866#5875
Half → 25K123157-34#5875#5909
25K → 30K160234-74#5909#5983
30K → 20M7766+11#5983#5972
20M → 21M9742+55#5972#5917
21M → 35K7819+59#5917#5858
35K → 23M13429+105#5858#5753
23M → 24M7144+27#5753#5726
24M → 40K6431+33#5726#5693
40K → 25.2M3031-1#5693#5694
25.2M → Finish4293-51#5694#5745
TOTALS2174932+1242
📊

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