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BOSTON MARATHON 2025

Hai Jun

Bib: 11640•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 16%
Masters (Masters Men)
#0 / 10463
Top 5%
Division (M50-54)
#0 / 1996
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:51
Rank: #5520
Start → 5K
20:51 | 6:43/mi
10K· 6.21 mi
40:13
Rank: #3561 (+1959)
5K → 10K
19:22 | 6:14/mi
15K· 9.32 mi
59:43
Rank: #3048 (+513)
10K → 15K
19:30 | 6:17/mi
20K· 12.43 mi
1:19:47
Rank: #2981 (+67)
15K → 20K
20:04 | 6:28/mi
Half· 13.11 mi
1:24:04
Rank: #2946 (+35)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:39:49
Rank: #2898 (+48)
Half → 25K
15:45 | 6:30/mi
30K· 18.64 mi
2:00:25
Rank: #2780 (+118)
25K → 30K
20:36 | 6:38/mi
20M
2:09:46
Rank: #2803 (-23)
30K → 20M
9:21 | 6:53/mi
21M
2:17:07
Rank: #2836 (-33)
20M → 21M
7:21 | 7:21/mi
35K· 21.75 mi
2:22:03
Rank: #2822 (+14)
21M → 35K
4:56 | 6:36/mi
23M
2:30:38
Rank: #2784 (+38)
35K → 23M
8:35 | 6:51/mi
24M
2:37:19
Rank: #2751 (+33)
23M → 24M
6:41 | 6:41/mi
40K· 24.85 mi
2:43:09
Rank: #2716 (+35)
24M → 40K
5:50 | 6:49/mi
25.2M
2:45:44
Rank: #2713 (+3)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:52:45
Rank: #2767 (-54)
25.2M → Finish
7:01 | 6:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:04
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:28:41
Pace6:46 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2820:516:4320:51
6:43
-
10K
6.21 mi11:06:5040:136:2819:22
6:14
-0:29
15K
9.32 mi11:26:2059:436:2419:30
6:17
+0:03
20K
12.43 mi11:46:241:19:476:2520:04
6:28
+0:11
Half
13.11 mi11:50:411:24:046:254:17
6:17
-0:11
25K
15.53 mi12:06:261:39:496:2615:45
6:30
+0:13
30K
18.64 mi12:27:022:00:256:2820:36
6:38
+0:08
20M
20.00 mi12:36:232:09:466:299:21
6:53
+0:15
21M
21.00 mi12:43:442:17:076:327:21
7:21
+0:28
35K
21.75 mi12:48:402:22:036:324:56
6:36
-0:45
23M
23.00 mi12:57:152:30:386:338:35
6:51
+0:15
24M
24.00 mi13:03:562:37:196:336:41
6:41
-0:10
40K
24.85 mi13:09:462:43:096:345:50
6:49
+0:08
25.2M
25.20 mi13:12:212:45:446:352:35
7:29
+0:40
Finish
26.22 mi13:19:222:52:456:367:01
6:53
-0:36

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

6:14 /mi

Average Pace

6:36 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:58

46% of race

Time at Steady Pace

1:07:29

39% of race

Time at Slower Pace

26:18

15% of race

Average Pace: 6:35 /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 mi10:47:2820:516:4320:51
6:43
#5520
10K
6.21 mi11:06:5040:136:2819:22
6:14
#3561
15K
9.32 mi11:26:2059:436:2419:30
6:17
#3048
20K
12.43 mi11:46:241:19:476:2520:04
6:28
#2981
Half
13.11 mi11:50:411:24:046:254:17
6:17
#2946
25K
15.53 mi12:06:261:39:496:2615:45
6:30
#2898
30K
18.64 mi12:27:022:00:256:2820:36
6:38
#2780
20M
20.00 mi12:36:232:09:466:299:21
6:53
#2803
21M
21.00 mi12:43:442:17:076:327:21
7:21
#2836
35K
21.75 mi12:48:402:22:036:324:56
6:36
#2822
23M
23.00 mi12:57:152:30:386:338:35
6:51
#2784
24M
24.00 mi13:03:562:37:196:336:41
6:41
#2751
40K
24.85 mi13:09:462:43:096:345:50
6:49
#2716
25.2M
25.20 mi13:12:212:45:446:352:35
7:29
#2713
Finish
26.22 mi13:19:222:52:456:367:01
6:53
#2767
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5520511051102225(Top 8%)2121(Top 13%)2121(Top 106%)
10K6.21 mi3.10 mi3561+19593377+17333377+17332064(Top 7%)1967(Top 12%)1967(Top 99%)
15K9.32 mi3.11 mi3048+5132901+4762901+4762225(Top 8%)2121(Top 13%)2121(Top 106%)
20K12.43 mi3.11 mi2981+672841+602841+602866(Top 10%)2729(Top 17%)2729(Top 137%)
Half13.11 mi0.68 mi2946+352807+342807+342386(Top 8%)2283(Top 14%)2283(Top 114%)
25K15.53 mi2.42 mi2898+482764+432764+432859(Top 10%)2720(Top 17%)2720(Top 136%)
30K18.64 mi3.11 mi2780+1182650+1142650+1142540(Top 9%)2402(Top 15%)2402(Top 120%)
20M20.00 mi1.36 mi2803-232670-202670-203358(Top 12%)3104(Top 19%)3104(Top 156%)
21M21.00 mi1.00 mi2836-332698-282698-283825(Top 13%)3475(Top 22%)3475(Top 174%)
35K21.75 mi0.75 mi2822+142683+152683+152890(Top 10%)2662(Top 17%)2662(Top 133%)
23M23.00 mi1.25 mi2784+382642+412642+412961(Top 10%)2703(Top 17%)2703(Top 135%)
24M24.00 mi1.00 mi2751+332608+342608+342874(Top 10%)2614(Top 16%)2614(Top 131%)
40K24.85 mi0.85 mi2716+352574+342574+342927(Top 10%)2636(Top 16%)2636(Top 132%)
25.2M25.20 mi0.35 mi2713+32569+52569+53291(Top 12%)2881(Top 18%)2881(Top 144%)
Finish26.22 mi1.02 mi2767-542617-482617-484950(Top 17%)4065(Top 25%)4065(Top 204%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2225

Males

2121

M50-54

2121

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

2064

Males

1967

M50-54

1967

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2225

Males

2121

M50-54

2121

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2866

Males

2729

M50-54

2729

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2386

Males

2283

M50-54

2283

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2859

Males

2720

M50-54

2720

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2540

Males

2402

M50-54

2402

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3358

Males

3104

M50-54

3104

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3825

Males

3475

M50-54

3475

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2890

Males

2662

M50-54

2662

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2961

Males

2703

M50-54

2703

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2874

Males

2614

M50-54

2614

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2927

Males

2636

M50-54

2636

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3291

Males

2881

M50-54

2881

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4950

Males

4065

M50-54

4065

Passing Analysis

Category:
Athletes Passed
3210
Passed By
457
Net Change
+2753
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5520
5K → 10K19590+1959#5520#3561
10K → 15K5130+513#3561#3048
15K → 20K11346+67#3048#2981
20K → Half383+35#2981#2946
Half → 25K8840+48#2946#2898
25K → 30K16345+118#2898#2780
30K → 20M4669-23#2780#2803
20M → 21M4376-33#2803#2836
21M → 35K3521+14#2836#2822
35K → 23M6527+38#2822#2784
23M → 24M5623+33#2784#2751
24M → 40K5722+35#2751#2716
40K → 25.2M1512+3#2716#2713
25.2M → Finish1973-54#2713#2767
TOTALS3210457+2753
📊

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