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BOSTON MARATHON 2025

Yi Xiao

Bib: 19760•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 47%
Division (F60-64)
#0 / 624
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:12
Rank: #19497
Start → 5K
8:26/mi
26:12 split
10K· 6.21 mi
52:52
Rank: #19894 (-397)
5K → 10K
8:35/mi
26:40 split
15K· 9.32 mi
1:19:53
Rank: #20083 (-189)
10K → 15K
8:42/mi
27:01 split
20K· 12.43 mi
1:47:48
Rank: #20271 (-188)
15K → 20K
8:59/mi
27:55 split
Half· 13.11 mi
1:53:34
Rank: #20203 (+68)
20K → Half
8:27/mi
5:46 split
25K· 15.53 mi
2:14:40
Rank: #19883 (+320)
Half → 25K
8:42/mi
21:06 split
30K· 18.64 mi
2:42:32
Rank: #19424 (+459)
25K → 30K
8:58/mi
27:52 split
20M
2:54:49
Rank: #19241 (+183)
30K → 20M
9:02/mi
12:17 split
21M
3:04:23
Rank: #19075 (+166)
20M → 21M
9:34/mi
9:34 split
35K· 21.75 mi
3:10:53
Rank: #18980 (+95)
21M → 35K
8:41/mi
6:30 split
23M
3:22:08
Rank: #18804 (+176)
35K → 23M
8:59/mi
11:15 split
24M
3:30:59
Rank: #18714 (+90)
23M → 24M
8:51/mi
8:51 split
40K· 24.85 mi
3:38:37
Rank: #18587 (+127)
24M → 40K
8:56/mi
7:38 split
25.2M
3:42:00
Rank: #18544 (+43)
40K → 25.2M
9:49/mi
3:23 split
Finish· 26.22 mi
3:50:42
Rank: #18474 (+70)
25.2M → Finish
8:32/mi
8:42 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:34
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time1:57:08
Pace8:56 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4026:128:2626:12
8:26
-
10K
6.21 mi11:47:2052:528:3026:40
8:35
+0:09
15K
9.32 mi12:14:211:19:538:3427:01
8:42
+0:07
20K
12.43 mi12:42:161:47:488:4027:55
8:59
+0:17
Half
13.11 mi12:48:021:53:348:405:46
8:27
-0:32
25K
15.53 mi13:09:082:14:408:4021:06
8:42
+0:15
30K
18.64 mi13:37:002:42:328:4327:52
8:58
+0:16
20M
20.00 mi13:49:172:54:498:4412:17
9:02
+0:04
21M
21.00 mi13:58:513:04:238:479:34
9:34
+0:32
35K
21.75 mi14:05:213:10:538:476:30
8:41
-0:53
23M
23.00 mi14:16:363:22:088:4711:15
8:59
+0:18
24M
24.00 mi14:25:273:30:598:478:51
8:51
-0:08
40K
24.85 mi14:33:053:38:378:487:38
8:56
+0:05
25.2M
25.20 mi14:36:283:42:008:493:23
9:49
+0:53
Finish
26.22 mi14:45:103:50:428:488:42
8:32
-1:17

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

8:26 /mi

Average Pace

8:48 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:45

94% of race

Time at Steady Pace

12:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:48 /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 mi11:20:4026:128:2626:12
8:26
#19497
10K
6.21 mi11:47:2052:528:3026:40
8:35
#19894
15K
9.32 mi12:14:211:19:538:3427:01
8:42
#20083
20K
12.43 mi12:42:161:47:488:4027:55
8:59
#20271
Half
13.11 mi12:48:021:53:348:405:46
8:27
#20203
25K
15.53 mi13:09:082:14:408:4021:06
8:42
#19883
30K
18.64 mi13:37:002:42:328:4327:52
8:58
#19424
20M
20.00 mi13:49:172:54:498:4412:17
9:02
#19241
21M
21.00 mi13:58:513:04:238:479:34
9:34
#19075
35K
21.75 mi14:05:213:10:538:476:30
8:41
#18980
23M
23.00 mi14:16:363:22:088:4711:15
8:59
#18804
24M
24.00 mi14:25:273:30:598:478:51
8:51
#18714
40K
24.85 mi14:33:053:38:378:487:38
8:56
#18587
25.2M
25.20 mi14:36:283:42:008:493:23
9:49
#18544
Finish
26.22 mi14:45:103:50:428:488:42
8:32
#18474
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi194977191719120467(Top 72%)7688(Top 63%)7688(Top 1232%)
10K6.21 mi3.10 mi19894-3977408-2177408-21720269(Top 71%)7615(Top 62%)7615(Top 1220%)
15K9.32 mi3.11 mi20083-1897517-1097517-10920467(Top 72%)7688(Top 63%)7688(Top 1232%)
20K12.43 mi3.11 mi20271-1887630-1137630-11320891(Top 74%)7988(Top 65%)7988(Top 1280%)
Half13.11 mi0.68 mi20203+687596+347596+3418936(Top 67%)6859(Top 56%)6859(Top 1099%)
25K15.53 mi2.42 mi19883+3207414+1827414+18218412(Top 65%)6660(Top 54%)6660(Top 1067%)
30K18.64 mi3.11 mi19424+4597199+2157199+21517530(Top 62%)6325(Top 52%)6325(Top 1014%)
20M20.00 mi1.36 mi19241+1837120+797120+7917036(Top 60%)6158(Top 50%)6158(Top 987%)
21M21.00 mi1.00 mi19075+1667044+767044+7616407(Top 58%)5937(Top 49%)5937(Top 951%)
35K21.75 mi0.75 mi18980+957011+337011+3316663(Top 59%)6159(Top 50%)6159(Top 987%)
23M23.00 mi1.25 mi18804+1766938+736938+7316197(Top 57%)5999(Top 49%)5999(Top 961%)
24M24.00 mi1.00 mi18714+906910+286910+2816620(Top 59%)6282(Top 51%)6282(Top 1007%)
40K24.85 mi0.85 mi18587+1276869+416869+4115934(Top 56%)6014(Top 49%)6014(Top 964%)
25.2M25.20 mi0.35 mi18544+436861+86861+816229(Top 57%)6214(Top 51%)6214(Top 996%)
Finish26.22 mi1.02 mi18474+706840+216840+2116499(Top 58%)6309(Top 52%)6309(Top 1011%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20467

Females

7688

F60-64

7688

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

20269

Females

7615

F60-64

7615

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20467

Females

7688

F60-64

7688

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

20891

Females

7988

F60-64

7988

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

18936

Females

6859

F60-64

6859

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18412

Females

6660

F60-64

6660

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

17530

Females

6325

F60-64

6325

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17036

Females

6158

F60-64

6158

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

16407

Females

5937

F60-64

5937

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

16663

Females

6159

F60-64

6159

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16197

Females

5999

F60-64

5999

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16620

Females

6282

F60-64

6282

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15934

Females

6014

F60-64

6014

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16229

Females

6214

F60-64

6214

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16499

Females

6309

F60-64

6309

Passing Analysis

Category:
Athletes Passed
2406
Passed By
1383
Net Change
+1023
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19497
5K → 10K128525-397#19497#19894
10K → 15K129318-189#19894#20083
15K → 20K125313-188#20083#20271
20K → Half735+68#20271#20203
Half → 25K35030+320#20203#19883
25K → 30K48627+459#19883#19424
30K → 20M21128+183#19424#19241
20M → 21M18721+166#19241#19075
21M → 35K11217+95#19075#18980
35K → 23M19519+176#18980#18804
23M → 24M11323+90#18804#18714
24M → 40K14518+127#18714#18587
40K → 25.2M5613+43#18587#18544
25.2M → Finish9626+70#18544#18474
TOTALS24061383+1023
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing