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BOSTON MARATHON 2025

Shiyou Ju

Bib: 9462•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 32%
Masters (Masters Men)
#0 / 10463
Top 18%
Division (M40-44)
#0 / 2247
Top 42%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:37
Rank: #7464
Start → 5K
21:37 | 6:57/mi
10K· 6.21 mi
42:41
Rank: #6919 (+545)
5K → 10K
21:04 | 6:47/mi
15K· 9.32 mi
1:03:47
Rank: #6601 (+318)
10K → 15K
21:06 | 6:47/mi
20K· 12.43 mi
1:24:56
Rank: #6261 (+340)
15K → 20K
21:09 | 6:48/mi
Half· 13.11 mi
1:29:33
Rank: #6233 (+28)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:46:05
Rank: #5968 (+265)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:07:58
Rank: #5702 (+266)
25K → 30K
21:53 | 7:03/mi
20M
2:17:49
Rank: #5680 (+22)
30K → 20M
9:51 | 7:15/mi
21M
2:25:41
Rank: #5677 (+3)
20M → 21M
7:52 | 7:52/mi
35K· 21.75 mi
2:31:16
Rank: #5734 (-57)
21M → 35K
5:35 | 7:28/mi
23M
2:40:57
Rank: #5787 (-53)
35K → 23M
9:41 | 7:44/mi
24M
2:48:24
Rank: #5790 (-3)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
2:54:54
Rank: #5797 (-7)
24M → 40K
6:30 | 7:36/mi
25.2M
2:57:45
Rank: #5792 (+5)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:04:57
Rank: #5744 (+48)
25.2M → Finish
7:12 | 7:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:33
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:35:24
Pace7:17 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:2721:376:5721:37
6:57
-
10K
6.21 mi11:09:3142:416:5221:04
6:47
-0:10
15K
9.32 mi11:30:371:03:476:5121:06
6:47
0:00
20K
12.43 mi11:51:461:24:566:5021:09
6:48
+0:01
Half
13.11 mi11:56:231:29:336:504:37
6:46
-0:02
25K
15.53 mi12:12:551:46:056:5016:32
6:49
+0:03
30K
18.64 mi12:34:482:07:586:5221:53
7:03
+0:14
20M
20.00 mi12:44:392:17:496:539:51
7:15
+0:12
21M
21.00 mi12:52:312:25:416:567:52
7:52
+0:37
35K
21.75 mi12:58:062:31:166:575:35
7:28
-0:24
23M
23.00 mi13:07:472:40:577:009:41
7:44
+0:16
24M
24.00 mi13:15:142:48:247:017:27
7:27
-0:17
40K
24.85 mi13:21:442:54:547:026:30
7:36
+0:09
25.2M
25.20 mi13:24:352:57:457:032:51
8:16
+0:40
Finish
26.22 mi13:31:473:04:577:047:12
7:04
-1:12

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

6:46 /mi

Average Pace

7:04 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:28

46% of race

Time at Steady Pace

1:00:33

33% of race

Time at Slower Pace

39:56

22% 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 mi10:48:2721:376:5721:37
6:57
#7464
10K
6.21 mi11:09:3142:416:5221:04
6:47
#6919
15K
9.32 mi11:30:371:03:476:5121:06
6:47
#6601
20K
12.43 mi11:51:461:24:566:5021:09
6:48
#6261
Half
13.11 mi11:56:231:29:336:504:37
6:46
#6233
25K
15.53 mi12:12:551:46:056:5016:32
6:49
#5968
30K
18.64 mi12:34:482:07:586:5221:53
7:03
#5702
20M
20.00 mi12:44:392:17:496:539:51
7:15
#5680
21M
21.00 mi12:52:312:25:416:567:52
7:52
#5677
35K
21.75 mi12:58:062:31:166:575:35
7:28
#5734
23M
23.00 mi13:07:472:40:577:009:41
7:44
#5787
24M
24.00 mi13:15:142:48:247:017:27
7:27
#5790
40K
24.85 mi13:21:442:54:547:026:30
7:36
#5797
25.2M
25.20 mi13:24:352:57:457:032:51
8:16
#5792
Finish
26.22 mi13:31:473:04:577:047:12
7:04
#5744
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7464663966395992(Top 21%)5446(Top 34%)5446(Top 242%)
10K6.21 mi3.10 mi6919+5456233+4066233+4066162(Top 22%)5614(Top 35%)5614(Top 250%)
15K9.32 mi3.11 mi6601+3185962+2715962+2715992(Top 21%)5446(Top 34%)5446(Top 242%)
20K12.43 mi3.11 mi6261+3405690+2725690+2725361(Top 19%)4917(Top 31%)4917(Top 219%)
Half13.11 mi0.68 mi6233+285664+265664+265780(Top 20%)5267(Top 33%)5267(Top 234%)
25K15.53 mi2.42 mi5968+2655432+2325432+2325010(Top 18%)4597(Top 29%)4597(Top 205%)
30K18.64 mi3.11 mi5702+2665200+2325200+2324961(Top 17%)4506(Top 28%)4506(Top 201%)
20M20.00 mi1.36 mi5680+225175+255175+255467(Top 19%)4817(Top 30%)4817(Top 214%)
21M21.00 mi1.00 mi5677+35164+115164+116551(Top 23%)5400(Top 34%)5400(Top 240%)
35K21.75 mi0.75 mi5734-575197-335197-338293(Top 29%)6457(Top 40%)6457(Top 287%)
23M23.00 mi1.25 mi5787-535215-185215-188068(Top 28%)6193(Top 38%)6193(Top 276%)
24M24.00 mi1.00 mi5790-35202+135202+137322(Top 26%)5709(Top 35%)5709(Top 254%)
40K24.85 mi0.85 mi5797-75192+105192+107386(Top 26%)5644(Top 35%)5644(Top 251%)
25.2M25.20 mi0.35 mi5792+55179+135179+137341(Top 26%)5506(Top 34%)5506(Top 245%)
Finish26.22 mi1.02 mi5744+485129+505129+506127(Top 22%)4803(Top 30%)4803(Top 214%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5992

Males

5446

M40-44

5446

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6162

Males

5614

M40-44

5614

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5992

Males

5446

M40-44

5446

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5361

Males

4917

M40-44

4917

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5780

Males

5267

M40-44

5267

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5010

Males

4597

M40-44

4597

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4961

Males

4506

M40-44

4506

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5467

Males

4817

M40-44

4817

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6551

Males

5400

M40-44

5400

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8293

Males

6457

M40-44

6457

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

8068

Males

6193

M40-44

6193

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7322

Males

5709

M40-44

5709

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7386

Males

5644

M40-44

5644

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7341

Males

5506

M40-44

5506

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

6127

Males

4803

M40-44

4803

Passing Analysis

Category:
Athletes Passed
2385
Passed By
665
Net Change
+1720
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7464
5K → 10K57934+545#7464#6919
10K → 15K35436+318#6919#6601
15K → 20K35010+340#6601#6261
20K → Half4214+28#6261#6233
Half → 25K2749+265#6233#5968
25K → 30K32054+266#5968#5702
30K → 20M8361+22#5702#5680
20M → 21M6562+3#5680#5677
21M → 35K3087-57#5677#5734
35K → 23M67120-53#5734#5787
23M → 24M5861-3#5787#5790
24M → 40K4855-7#5790#5797
40K → 25.2M3530+5#5797#5792
25.2M → Finish8032+48#5792#5744
TOTALS2385665+1720
📊

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