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BOSTON MARATHON 2025

Yun Chen

GA

Bib: 11576 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 36%
Masters (Masters Men)
#0 / 10463
Top 23%
Division (M50-54)
#0 / 1996
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:09/mi
22:13
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:02/mi
44:04
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:00/mi
1:05:50
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:06/mi
1:27:55
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:58/mi
1:32:40
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:06/mi
1:49:54
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:18/mi
2:12:34
↑ 181↓ 1480.2%
138 ft elev
20M
7:17/mi
2:22:28
↑ 64↓ 500.2%
148 ft elev
21M
7:48/mi
2:30:16
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:09/mi
2:35:37
↑ 17↓ 861.7%
156 ft elev
23M
7:22/mi
2:44:51
↑ 23↓ 630.6%
116 ft elev
24M
7:23/mi
2:52:14
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:27/mi
2:58:36
↓ 200.3%
20 ft elev
25.2M
8:25/mi
3:01:30
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:21/mi
3:08:59
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:40
Pace7:04 /mi
2nd Half
Distance13.11 mi
Time1:36:19
Pace7:21 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1822:137:0922:13
7:09
-
10K
6.21 mi11:11:0944:047:0621:51
7:02
-0:07
15K
9.32 mi11:32:551:05:507:0421:46
7:00
-0:02
20K
12.43 mi11:55:001:27:557:0422:05
7:06
+0:06
Half
13.11 mi11:59:451:32:407:044:45
6:58
-0:08
25K
15.53 mi12:16:591:49:547:0417:14
7:06
+0:08
30K
18.64 mi12:39:392:12:347:0722:40
7:18
+0:12
20M
20.00 mi12:49:332:22:287:079:54
7:17
-0:01
21M
21.00 mi12:57:212:30:167:097:48
7:48
+0:31
35K
21.75 mi13:02:422:35:377:095:21
7:09
-0:39
23M
23.00 mi13:11:562:44:517:109:14
7:22
+0:13
24M
24.00 mi13:19:192:52:147:117:23
7:23
+0:01
40K
24.85 mi13:25:412:58:367:116:22
7:27
+0:04
25.2M
25.20 mi13:28:353:01:307:122:54
8:25
+0:58
Finish
26.22 mi13:36:043:08:597:137:29
7:21
-1:04

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

6:58 /mi

Average Pace

7:13 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:41

46% of race

Time at Steady Pace

1:30:36

48% of race

Time at Slower Pace

10:42

6% of race

Average Pace: 7:12 /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 mi10:49:1822:137:0922:13
7:09
#9054
10K
6.21 mi11:11:0944:047:0621:51
7:02
#8577
15K
9.32 mi11:32:551:05:507:0421:46
7:00
#8225
20K
12.43 mi11:55:001:27:557:0422:05
7:06
#7995
Half
13.11 mi11:59:451:32:407:044:45
6:58
#7943
25K
15.53 mi12:16:591:49:547:0417:14
7:06
#7753
30K
18.64 mi12:39:392:12:347:0722:40
7:18
#7426
20M
20.00 mi12:49:332:22:287:079:54
7:17
#7212
21M
21.00 mi12:57:212:30:167:097:48
7:48
#7098
35K
21.75 mi13:02:422:35:377:095:21
7:09
#7038
23M
23.00 mi13:11:562:44:517:109:14
7:22
#6885
24M
24.00 mi13:19:192:52:147:117:23
7:23
#6832
40K
24.85 mi13:25:412:58:367:116:22
7:27
#6777
25.2M
25.20 mi13:28:353:01:307:122:54
8:25
#6766
Finish
26.22 mi13:36:043:08:597:137:29
7:21
#6760
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9054763976397658(Top 27%)6722(Top 42%)6722(Top 337%)
10K6.21 mi3.10 mi8577+4777336+3037336+3038152(Top 29%)7065(Top 44%)7065(Top 354%)
15K9.32 mi3.11 mi8225+3527116+2207116+2207658(Top 27%)6722(Top 42%)6722(Top 337%)
20K12.43 mi3.11 mi7995+2306950+1666950+1667555(Top 27%)6583(Top 41%)6583(Top 330%)
Half13.11 mi0.68 mi7943+526915+356915+357276(Top 26%)6418(Top 40%)6418(Top 322%)
25K15.53 mi2.42 mi7753+1906776+1396776+1397019(Top 25%)6132(Top 38%)6132(Top 307%)
30K18.64 mi3.11 mi7426+3276514+2626514+2626430(Top 23%)5609(Top 35%)5609(Top 281%)
20M20.00 mi1.36 mi7212+2146330+1846330+1845708(Top 20%)4988(Top 31%)4988(Top 250%)
21M21.00 mi1.00 mi7098+1146220+1106220+1106190(Top 22%)5191(Top 32%)5191(Top 260%)
35K21.75 mi0.75 mi7038+606163+576163+576286(Top 22%)5259(Top 33%)5259(Top 263%)
23M23.00 mi1.25 mi6885+1536020+1436020+1435891(Top 21%)4905(Top 30%)4905(Top 246%)
24M24.00 mi1.00 mi6832+535956+645956+646929(Top 24%)5482(Top 34%)5482(Top 275%)
40K24.85 mi0.85 mi6777+555889+675889+676476(Top 23%)5132(Top 32%)5132(Top 257%)
25.2M25.20 mi0.35 mi6766+115865+245865+248180(Top 29%)6004(Top 37%)6004(Top 301%)
Finish26.22 mi1.02 mi6760+65836+295836+298049(Top 28%)5934(Top 37%)5934(Top 297%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7658

Males

6722

M50-54

6722

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

8152

Males

7065

M50-54

7065

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7658

Males

6722

M50-54

6722

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7555

Males

6583

M50-54

6583

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

7276

Males

6418

M50-54

6418

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

7019

Males

6132

M50-54

6132

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6430

Males

5609

M50-54

5609

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5708

Males

4988

M50-54

4988

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6190

Males

5191

M50-54

5191

21M→35K

21.0 - 21.8 mi

Top 22%
×7story building
+17ft-86ft

Overall

6286

Males

5259

M50-54

5259

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5891

Males

4905

M50-54

4905

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6929

Males

5482

M50-54

5482

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6476

Males

5132

M50-54

5132

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8180

Males

6004

M50-54

6004

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

8049

Males

5934

M50-54

5934

Passing Analysis

Category:
Athletes Passed
2726
Passed By
432
Net Change
+2294
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9054
5K → 10K52750+477#9054#8577
10K → 15K37523+352#8577#8225
15K → 20K26737+230#8225#7995
20K → Half597+52#7995#7943
Half → 25K22131+190#7943#7753
25K → 30K36134+327#7753#7426
30K → 20M2228+214#7426#7212
20M → 21M15137+114#7212#7098
21M → 35K7616+60#7098#7038
35K → 23M17623+153#7038#6885
23M → 24M9542+53#6885#6832
24M → 40K9439+55#6832#6777
40K → 25.2M4130+11#6777#6766
25.2M → Finish6155+6#6766#6760
TOTALS2726432+2294
📊

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