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BOSTON MARATHON 2025

Zhaohui Xu

Bib: 12974•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 29%
Gender (Male)
#0 / 16105
Top 42%
Masters (Masters Men)
#0 / 10463
Top 29%
Division (M55-59)
#0 / 1648
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:52
Rank: #10924
Start → 5K
22:52 | 7:22/mi
10K· 6.21 mi
45:15
Rank: #10190 (+734)
5K → 10K
22:23 | 7:12/mi
15K· 9.32 mi
1:07:32
Rank: #9702 (+488)
10K → 15K
22:17 | 7:10/mi
20K· 12.43 mi
1:30:10
Rank: #9454 (+248)
15K → 20K
22:38 | 7:17/mi
Half· 13.11 mi
1:35:05
Rank: #9426 (+28)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:52:57
Rank: #9320 (+106)
Half → 25K
17:52 | 7:22/mi
30K· 18.64 mi
2:16:36
Rank: #9081 (+239)
25K → 30K
23:39 | 7:37/mi
20M
2:26:49
Rank: #8872 (+209)
30K → 20M
10:13 | 7:31/mi
21M
2:34:46
Rank: #8715 (+157)
20M → 21M
7:57 | 7:57/mi
35K· 21.75 mi
2:40:25
Rank: #8705 (+10)
21M → 35K
5:39 | 7:33/mi
23M
2:49:54
Rank: #8504 (+201)
35K → 23M
9:29 | 7:34/mi
24M
2:57:24
Rank: #8442 (+62)
23M → 24M
7:30 | 7:30/mi
40K· 24.85 mi
3:03:41
Rank: #8279 (+163)
24M → 40K
6:17 | 7:21/mi
25.2M
3:06:28
Rank: #8237 (+42)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:13:45
Rank: #8138 (+99)
25.2M → Finish
7:17 | 7:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:05
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:38:40
Pace7:32 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2422:527:2222:52
7:22
-
10K
6.21 mi11:14:4745:157:1722:23
7:12
-0:10
15K
9.32 mi11:37:041:07:327:1522:17
7:10
-0:02
20K
12.43 mi11:59:421:30:107:1522:38
7:17
+0:07
Half
13.11 mi12:04:371:35:057:154:55
7:12
-0:05
25K
15.53 mi12:22:291:52:577:1617:52
7:22
+0:10
30K
18.64 mi12:46:082:16:367:2023:39
7:37
+0:15
20M
20.00 mi12:56:212:26:497:2010:13
7:31
-0:06
21M
21.00 mi13:04:182:34:467:227:57
7:57
+0:26
35K
21.75 mi13:09:572:40:257:235:39
7:33
-0:24
23M
23.00 mi13:19:262:49:547:239:29
7:34
+0:01
24M
24.00 mi13:26:562:57:247:247:30
7:30
-0:04
40K
24.85 mi13:33:133:03:417:236:17
7:21
-0:09
25.2M
25.20 mi13:36:003:06:287:242:47
8:04
+0:43
Finish
26.22 mi13:43:173:13:457:247:17
7:09
-0:55

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

7:09 /mi

Average Pace

7:24 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:01

94% of race

Time at Steady Pace

10:44

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:23 /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 mi10:52:2422:527:2222:52
7:22
#10924
10K
6.21 mi11:14:4745:157:1722:23
7:12
#10190
15K
9.32 mi11:37:041:07:327:1522:17
7:10
#9702
20K
12.43 mi11:59:421:30:107:1522:38
7:17
#9454
Half
13.11 mi12:04:371:35:057:154:55
7:12
#9426
25K
15.53 mi12:22:291:52:577:1617:52
7:22
#9320
30K
18.64 mi12:46:082:16:367:2023:39
7:37
#9081
20M
20.00 mi12:56:212:26:497:2010:13
7:31
#8872
21M
21.00 mi13:04:182:34:467:227:57
7:57
#8715
35K
21.75 mi13:09:572:40:257:235:39
7:33
#8705
23M
23.00 mi13:19:262:49:547:239:29
7:34
#8504
24M
24.00 mi13:26:562:57:247:247:30
7:30
#8442
40K
24.85 mi13:33:133:03:417:236:17
7:21
#8279
25.2M
25.20 mi13:36:003:06:287:242:47
8:04
#8237
Finish
26.22 mi13:43:173:13:457:247:17
7:09
#8138
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi10924864986498880(Top 31%)7479(Top 46%)7479(Top 454%)
10K6.21 mi3.10 mi10190+7348262+3878262+3879510(Top 33%)7882(Top 49%)7882(Top 478%)
15K9.32 mi3.11 mi9702+4887978+2847978+2848880(Top 31%)7479(Top 46%)7479(Top 454%)
20K12.43 mi3.11 mi9454+2487806+1727806+1728913(Top 31%)7395(Top 46%)7395(Top 449%)
Half13.11 mi0.68 mi9426+287785+217785+219069(Top 32%)7501(Top 47%)7501(Top 455%)
25K15.53 mi2.42 mi9320+1067703+827703+828875(Top 31%)7264(Top 45%)7264(Top 441%)
30K18.64 mi3.11 mi9081+2397513+1907513+1908526(Top 30%)6896(Top 43%)6896(Top 418%)
20M20.00 mi1.36 mi8872+2097366+1477366+1477131(Top 25%)5926(Top 37%)5926(Top 360%)
21M21.00 mi1.00 mi8715+1577238+1287238+1287075(Top 25%)5726(Top 36%)5726(Top 347%)
35K21.75 mi0.75 mi8705+107211+277211+278970(Top 32%)6832(Top 42%)6832(Top 415%)
23M23.00 mi1.25 mi8504+2017048+1637048+1637068(Top 25%)5621(Top 35%)5621(Top 341%)
24M24.00 mi1.00 mi8442+626976+726976+727670(Top 27%)5918(Top 37%)5918(Top 359%)
40K24.85 mi0.85 mi8279+1636848+1286848+1285919(Top 21%)4806(Top 30%)4806(Top 292%)
25.2M25.20 mi0.35 mi8237+426806+426806+426304(Top 22%)4937(Top 31%)4937(Top 300%)
Finish26.22 mi1.02 mi8138+996710+966710+966686(Top 24%)5146(Top 32%)5146(Top 312%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8880

Males

7479

M55-59

7479

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

9510

Males

7882

M55-59

7882

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8880

Males

7479

M55-59

7479

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8913

Males

7395

M55-59

7395

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9069

Males

7501

M55-59

7501

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8875

Males

7264

M55-59

7264

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8526

Males

6896

M55-59

6896

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7131

Males

5926

M55-59

5926

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

7075

Males

5726

M55-59

5726

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8970

Males

6832

M55-59

6832

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

7068

Males

5621

M55-59

5621

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7670

Males

5918

M55-59

5918

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5919

Males

4806

M55-59

4806

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6304

Males

4937

M55-59

4937

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6686

Males

5146

M55-59

5146

Passing Analysis

Category:
Athletes Passed
3311*
Passed By
525
Net Change
+2786
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10924
5K → 10K78551+734#10924#10190
10K → 15K507*19+488#10190#9702
15K → 20K30254+248#9702#9454
20K → Half4719+28#9454#9426
Half → 25K19387+106#9426#9320
25K → 30K33697+239#9320#9081
30K → 20M22415+209#9081#8872
20M → 21M18023+157#8872#8715
21M → 35K6353+10#8715#8705
35K → 23M22423+201#8705#8504
23M → 24M11149+62#8504#8442
24M → 40K1718+163#8442#8279
40K → 25.2M475+42#8279#8237
25.2M → Finish12122+99#8237#8138
TOTALS3311*525+2786

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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