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BOSTON MARATHON 2025

Zhang Hongjun

Bib: 14953•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 46%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 49%
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:43/mi
23:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:33/mi
47:26
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:54
↑ 67↓ 78
20K· 12.43 mi
7:39/mi
1:34:40
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:39:54
↑ 19↓ 370.5%
25K· 15.53 mi
7:57/mi
1:59:10
↑ 66↓ 880.2%
30K· 18.64 mi
8:26/mi
2:25:23
↑ 181↓ 1480.2%
20M
8:37/mi
2:37:05
↑ 64↓ 500.2%
21M
9:10/mi
2:46:15
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
2:52:23
↑ 17↓ 861.7%
23M
8:37/mi
3:03:10
↑ 23↓ 630.6%
24M
8:06/mi
3:11:16
↓ 821.3%
40K· 24.85 mi
8:14/mi
3:18:18
↓ 200.3%
25.2M
9:34/mi
3:21:36
↑ 13↓ 160.2%
Finish· 26.22 mi
8:07/mi
3:29:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:54
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:49:58
Pace8:23 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1323:597:4323:59
7:43
-
10K
6.21 mi11:18:4047:267:3823:27
7:33
-0:10
15K
9.32 mi11:42:081:10:547:3623:28
7:33
0:00
20K
12.43 mi12:05:541:34:407:3723:46
7:39
+0:06
Half
13.11 mi12:11:081:39:547:375:14
7:40
+0:01
25K
15.53 mi12:30:241:59:107:4019:16
7:57
+0:17
30K
18.64 mi12:56:372:25:237:4826:13
8:26
+0:29
20M
20.00 mi13:08:192:37:057:5111:42
8:37
+0:11
21M
21.00 mi13:17:292:46:157:559:10
9:10
+0:33
35K
21.75 mi13:23:372:52:237:566:08
8:12
-0:58
23M
23.00 mi13:34:243:03:107:5810:47
8:37
+0:25
24M
24.00 mi13:42:303:11:167:588:06
8:06
-0:31
40K
24.85 mi13:49:323:18:187:597:02
8:14
+0:08
25.2M
25.20 mi13:52:503:21:368:003:18
9:34
+1:20
Finish
26.22 mi14:01:063:29:528:018:16
8:07
-1:27

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

7:33 /mi

Average Pace

8:01 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:54

48% of race

Time at Steady Pace

48:48

23% of race

Time at Slower Pace

1:01:10

29% of race

Average Pace: 8:00 /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 mi10:55:1323:597:4323:59
7:43
#14124
10K
6.21 mi11:18:4047:267:3823:27
7:33
#13336
15K
9.32 mi11:42:081:10:547:3623:28
7:33
#12924
20K
12.43 mi12:05:541:34:407:3723:46
7:39
#12640
Half
13.11 mi12:11:081:39:547:375:14
7:40
#12666
25K
15.53 mi12:30:241:59:107:4019:16
7:57
#12764
30K
18.64 mi12:56:372:25:237:4826:13
8:26
#13074
20M
20.00 mi13:08:192:37:057:5111:42
8:37
#13161
21M
21.00 mi13:17:292:46:157:559:10
9:10
#13225
35K
21.75 mi13:23:372:52:237:566:08
8:12
#13218
23M
23.00 mi13:34:243:03:107:5810:47
8:37
#13252
24M
24.00 mi13:42:303:11:167:588:06
8:06
#13176
40K
24.85 mi13:49:323:18:187:597:02
8:14
#13099
25.2M
25.20 mi13:52:503:21:368:003:18
9:34
#13138
Finish
26.22 mi14:01:063:29:528:018:16
8:07
#13176
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi14124100911009112207(Top 43%)9152(Top 57%)9152(Top 459%)
10K6.21 mi3.10 mi13336+7889749+3429749+34212530(Top 44%)9390(Top 58%)9390(Top 470%)
15K9.32 mi3.11 mi12924+4129544+2059544+20512207(Top 43%)9152(Top 57%)9152(Top 459%)
20K12.43 mi3.11 mi12640+2849375+1699375+16911944(Top 42%)8951(Top 56%)8951(Top 448%)
Half13.11 mi0.68 mi12666-269376-19376-113117(Top 46%)9516(Top 59%)9516(Top 477%)
25K15.53 mi2.42 mi12764-989384-89384-813469(Top 47%)9509(Top 59%)9509(Top 476%)
30K18.64 mi3.11 mi13074-3109443-599443-5914373(Top 51%)9763(Top 61%)9763(Top 489%)
20M20.00 mi1.36 mi13161-879456-139456-1314472(Top 51%)9667(Top 60%)9667(Top 484%)
21M21.00 mi1.00 mi13225-649453+39453+314414(Top 51%)9525(Top 59%)9525(Top 477%)
35K21.75 mi0.75 mi13218+79432+219432+2113581(Top 48%)9074(Top 56%)9074(Top 455%)
23M23.00 mi1.25 mi13252-349402+309402+3013986(Top 49%)9159(Top 57%)9159(Top 459%)
24M24.00 mi1.00 mi13176+769336+669336+6611883(Top 42%)8109(Top 50%)8109(Top 406%)
40K24.85 mi0.85 mi13099+779280+569280+5611709(Top 41%)7925(Top 49%)7925(Top 397%)
25.2M25.20 mi0.35 mi13138-399289-99289-914883(Top 52%)9341(Top 58%)9341(Top 468%)
Finish26.22 mi1.02 mi13176-389281+89281+813652(Top 48%)8841(Top 55%)8841(Top 443%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12207

Males

9152

M50-54

9152

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

12530

Males

9390

M50-54

9390

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12207

Males

9152

M50-54

9152

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11944

Males

8951

M50-54

8951

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

13117

Males

9516

M50-54

9516

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13469

Males

9509

M50-54

9509

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14373

Males

9763

M50-54

9763

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

14472

Males

9667

M50-54

9667

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14414

Males

9525

M50-54

9525

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13581

Males

9074

M50-54

9074

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13986

Males

9159

M50-54

9159

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11883

Males

8109

M50-54

8109

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11709

Males

7925

M50-54

7925

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14883

Males

9341

M50-54

9341

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

13652

Males

8841

M50-54

8841

Passing Analysis

Category:
Athletes Passed
2594
Passed By
1646
Net Change
+948
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14124
5K → 10K84355+788#14124#13336
10K → 15K47159+412#13336#12924
15K → 20K35066+284#12924#12640
20K → Half2147-26#12640#12666
Half → 25K134232-98#12666#12764
25K → 30K152462-310#12764#13074
30K → 20M89176-87#13074#13161
20M → 21M84148-64#13161#13225
21M → 35K6255+7#13225#13218
35K → 23M96130-34#13218#13252
23M → 24M11337+76#13252#13176
24M → 40K10730+77#13176#13099
40K → 25.2M2362-39#13099#13138
25.2M → Finish4987-38#13138#13176
TOTALS25941646+948
📊

Passing Visuals

Category:
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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