Boston Marathon logo
BOSTON MARATHON 2025

Zhemin Xie

Bib: 13583•F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 33%
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
24:42
Rank: #16196
Start → 5K
24:42 | 7:57/mi
10K· 6.21 mi
49:18
Rank: #15965 (+231)
5K → 10K
24:36 | 7:55/mi
15K· 9.32 mi
1:14:07
Rank: #15932 (+33)
10K → 15K
24:49 | 7:59/mi
20K· 12.43 mi
1:38:45
Rank: #15506 (+426)
15K → 20K
24:38 | 7:56/mi
Half· 13.11 mi
1:44:12
Rank: #15521 (-15)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:03:26
Rank: #15128 (+393)
Half → 25K
19:14 | 7:56/mi
30K· 18.64 mi
2:28:56
Rank: #14624 (+504)
25K → 30K
25:30 | 8:12/mi
20M
2:40:08
Rank: #14384 (+240)
30K → 20M
11:12 | 8:15/mi
21M
2:48:35
Rank: #14074 (+310)
20M → 21M
8:27 | 8:27/mi
35K· 21.75 mi
2:54:20
Rank: #13897 (+177)
21M → 35K
5:45 | 7:41/mi
23M
3:05:47
Rank: #14161 (-264)
35K → 23M
11:27 | 9:09/mi
24M
3:13:38
Rank: #13954 (+207)
23M → 24M
7:51 | 7:51/mi
40K· 24.85 mi
3:20:21
Rank: #13723 (+231)
24M → 40K
6:43 | 7:51/mi
25.2M
3:23:18
Rank: #13635 (+88)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:30:44
Rank: #13403 (+232)
25.2M → Finish
7:26 | 7:18/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
Time1:44:12
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:46:32
Pace8:08 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0424:427:5724:42
7:57
-
10K
6.21 mi11:18:4049:187:5624:36
7:55
-0:02
15K
9.32 mi11:43:291:14:077:5724:49
7:59
+0:04
20K
12.43 mi12:08:071:38:457:5724:38
7:56
-0:03
Half
13.11 mi12:13:341:44:127:575:27
7:59
+0:03
25K
15.53 mi12:32:482:03:267:5719:14
7:56
-0:03
30K
18.64 mi12:58:182:28:567:5925:30
8:12
+0:16
20M
20.00 mi13:09:302:40:088:0011:12
8:15
+0:03
21M
21.00 mi13:17:572:48:358:028:27
8:27
+0:12
35K
21.75 mi13:23:422:54:208:015:45
7:41
-0:46
23M
23.00 mi13:35:093:05:478:0511:27
9:09
+1:28
24M
24.00 mi13:43:003:13:388:047:51
7:51
-1:18
40K
24.85 mi13:49:433:20:218:046:43
7:51
0:00
25.2M
25.20 mi13:52:403:23:188:042:57
8:33
+0:42
Finish
26.22 mi14:00:063:30:448:037:26
7:18
-1:15

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

7:18 /mi

Average Pace

8:03 /mi

Slowest Pace

9:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

13:11

6% of race

Time at Steady Pace

2:18:00

65% of race

Time at Slower Pace

59:33

28% of race

Average Pace: 8:02 /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 mi10:54:0424:427:5724:42
7:57
#16196
10K
6.21 mi11:18:4049:187:5624:36
7:55
#15965
15K
9.32 mi11:43:291:14:077:5724:49
7:59
#15932
20K
12.43 mi12:08:071:38:457:5724:38
7:56
#15506
Half
13.11 mi12:13:341:44:127:575:27
7:59
#15521
25K
15.53 mi12:32:482:03:267:5719:14
7:56
#15128
30K
18.64 mi12:58:182:28:567:5925:30
8:12
#14624
20M
20.00 mi13:09:302:40:088:0011:12
8:15
#14384
21M
21.00 mi13:17:572:48:358:028:27
8:27
#14074
35K
21.75 mi13:23:422:54:208:015:45
7:41
#13897
23M
23.00 mi13:35:093:05:478:0511:27
9:09
#14161
24M
24.00 mi13:43:003:13:388:047:51
7:51
#13954
40K
24.85 mi13:49:433:20:218:046:43
7:51
#13723
25.2M
25.20 mi13:52:403:23:188:042:57
8:33
#13635
Finish
26.22 mi14:00:063:30:448:037:26
7:18
#13403
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi161965259525915960(Top 56%)5115(Top 42%)5115(Top 94%)
10K6.21 mi3.10 mi15965+2315115+1445115+14415810(Top 56%)5015(Top 41%)5015(Top 92%)
15K9.32 mi3.11 mi15932+335102+135102+1315960(Top 56%)5115(Top 42%)5115(Top 94%)
20K12.43 mi3.11 mi15506+4264863+2394863+23914361(Top 51%)4285(Top 35%)4285(Top 78%)
Half13.11 mi0.68 mi15521-154874-114874-1115809(Top 56%)5044(Top 41%)5044(Top 92%)
25K15.53 mi2.42 mi15128+3934680+1944680+19413380(Top 47%)3869(Top 32%)3869(Top 71%)
30K18.64 mi3.11 mi14624+5044456+2244456+22412900(Top 45%)3778(Top 31%)3778(Top 69%)
20M20.00 mi1.36 mi14384+2404351+1054351+10512109(Top 43%)3513(Top 29%)3513(Top 64%)
21M21.00 mi1.00 mi14074+3104206+1454206+14510197(Top 36%)2712(Top 22%)2712(Top 50%)
35K21.75 mi0.75 mi13897+1774129+774129+7710067(Top 35%)2653(Top 22%)2653(Top 49%)
23M23.00 mi1.25 mi14161-2644318-1894318-18917078(Top 60%)6488(Top 53%)6488(Top 119%)
24M24.00 mi1.00 mi13954+2074233+854233+8510245(Top 36%)2940(Top 24%)2940(Top 54%)
40K24.85 mi0.85 mi13723+2314130+1034130+1039231(Top 32%)2575(Top 21%)2575(Top 47%)
25.2M25.20 mi0.35 mi13635+884092+384092+389242(Top 33%)2679(Top 22%)2679(Top 49%)
Finish26.22 mi1.02 mi13403+2323988+1043988+1047792(Top 27%)1990(Top 16%)1990(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

15960

Females

5115

F18-39

5115

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15810

Females

5015

F18-39

5015

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

15960

Females

5115

F18-39

5115

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14361

Females

4285

F18-39

4285

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

15809

Females

5044

F18-39

5044

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

13380

Females

3869

F18-39

3869

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12900

Females

3778

F18-39

3778

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

12109

Females

3513

F18-39

3513

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

10197

Females

2712

F18-39

2712

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

10067

Females

2653

F18-39

2653

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

17078

Females

6488

F18-39

6488

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

10245

Females

2940

F18-39

2940

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9231

Females

2575

F18-39

2575

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9242

Females

2679

F18-39

2679

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7792

Females

1990

F18-39

1990

Passing Analysis

Category:
Athletes Passed
3683
Passed By
890
Net Change
+2793
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16196
5K → 10K440209+231#16196#15965
10K → 15K210177+33#15965#15932
15K → 20K46236+426#15932#15506
20K → Half2742-15#15506#15521
Half → 25K41118+393#15521#15128
25K → 30K54339+504#15128#14624
30K → 20M26121+240#14624#14384
20M → 21M3188+310#14384#14074
21M → 35K1792+177#14074#13897
35K → 23M55319-264#13897#14161
23M → 24M2125+207#14161#13954
24M → 40K2365+231#13954#13723
40K → 25.2M935+88#13723#13635
25.2M → Finish2364+232#13635#13403
TOTALS3683890+2793
📊

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