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BOSTON MARATHON 2025

Yefeng Shen

Bib: 7418•M

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 25%
Division (M40-44)
#0 / 2247
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
6:51/mi
21:17
↑ 97↓ 3451.5%
10K· 6.21 mi
6:50/mi
42:30
↑ 79↓ 1380.4%
15K· 9.32 mi
6:57/mi
1:04:07
↑ 67↓ 78
20K· 12.43 mi
6:58/mi
1:25:46
↑ 106↓ 860.1%
Half· 13.11 mi
6:36/mi
1:30:16
↑ 19↓ 370.5%
25K· 15.53 mi
6:54/mi
1:47:00
↑ 66↓ 880.2%
30K· 18.64 mi
7:08/mi
2:09:09
↑ 181↓ 1480.2%
20M
7:24/mi
2:19:13
↑ 64↓ 500.2%
21M
7:57/mi
2:27:10
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:32:43
↑ 17↓ 861.7%
23M
7:58/mi
2:42:42
↑ 23↓ 630.6%
24M
8:12/mi
2:50:54
↓ 821.3%
40K· 24.85 mi
9:35/mi
2:59:06
↓ 200.3%
25.2M
8:59/mi
3:02:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:59/mi
3:10:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:16
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:40:04
Pace7:38 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:4221:176:5121:17
6:51
-
10K
6.21 mi10:49:5542:306:5021:13
6:50
-0:01
15K
9.32 mi11:11:321:04:076:5321:37
6:57
+0:07
20K
12.43 mi11:33:111:25:466:5421:39
6:58
+0:01
Half
13.11 mi11:37:411:30:166:534:30
6:36
-0:22
25K
15.53 mi11:54:251:47:006:5316:44
6:54
+0:18
30K
18.64 mi12:16:342:09:096:5622:09
7:08
+0:14
20M
20.00 mi12:26:382:19:136:5810:04
7:24
+0:16
21M
21.00 mi12:34:352:27:107:007:57
7:57
+0:33
35K
21.75 mi12:40:082:32:437:015:33
7:25
-0:32
23M
23.00 mi12:50:072:42:427:049:59
7:58
+0:33
24M
24.00 mi12:58:192:50:547:078:12
8:12
+0:14
40K
24.85 mi13:06:312:59:067:128:12
9:35
+1:23
25.2M
25.20 mi13:09:373:02:127:143:06
8:59
-0:36
Finish
26.22 mi13:17:453:10:207:168:08
7:59
-1:00

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

6:36 /mi

Average Pace

7:16 /mi

Slowest Pace

9:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:00

56% of race

Time at Steady Pace

37:46

20% of race

Time at Slower Pace

45:34

24% of race

Average Pace: 7:16 /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 mi10:28:4221:176:5121:17
6:51
#6693
10K
6.21 mi10:49:5542:306:5021:13
6:50
#6659
15K
9.32 mi11:11:321:04:076:5321:37
6:57
#6901
20K
12.43 mi11:33:111:25:466:5421:39
6:58
#6823
Half
13.11 mi11:37:411:30:166:534:30
6:36
#6716
25K
15.53 mi11:54:251:47:006:5316:44
6:54
#6482
30K
18.64 mi12:16:342:09:096:5622:09
7:08
#6169
20M
20.00 mi12:26:382:19:136:5810:04
7:24
#6139
21M
21.00 mi12:34:352:27:107:007:57
7:57
#6140
35K
21.75 mi12:40:082:32:437:015:33
7:25
#6154
23M
23.00 mi12:50:072:42:427:049:59
7:58
#6271
24M
24.00 mi12:58:192:50:547:078:12
8:12
#6435
40K
24.85 mi13:06:312:59:067:128:12
9:35
#6922
25.2M
25.20 mi13:09:373:02:127:143:06
8:59
#6974
Finish
26.22 mi13:17:453:10:207:168:08
7:59
#7155
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6693606860687346(Top 26%)6509(Top 40%)6509(Top 290%)
10K6.21 mi3.10 mi6659+346031+376031+376687(Top 24%)6032(Top 37%)6032(Top 268%)
15K9.32 mi3.11 mi6901-2426204-1736204-1737346(Top 26%)6509(Top 40%)6509(Top 290%)
20K12.43 mi3.11 mi6823+786146+586146+586680(Top 24%)5962(Top 37%)5962(Top 265%)
Half13.11 mi0.68 mi6716+1076061+856061+854372(Top 15%)4094(Top 25%)4094(Top 182%)
25K15.53 mi2.42 mi6482+2345854+2075854+2075681(Top 20%)5143(Top 32%)5143(Top 229%)
30K18.64 mi3.11 mi6169+3135563+2915563+2915484(Top 19%)4924(Top 31%)4924(Top 219%)
20M20.00 mi1.36 mi6139+305526+375526+376418(Top 23%)5471(Top 34%)5471(Top 243%)
21M21.00 mi1.00 mi6140-15514+125514+127053(Top 25%)5704(Top 35%)5704(Top 254%)
35K21.75 mi0.75 mi6154-145521-75521-78004(Top 28%)6289(Top 39%)6289(Top 280%)
23M23.00 mi1.25 mi6271-1175584-635584-639802(Top 35%)7120(Top 44%)7120(Top 317%)
24M24.00 mi1.00 mi6435-1645685-1015685-10112520(Top 44%)8415(Top 52%)8415(Top 374%)
40K24.85 mi0.85 mi6922-4875988-3035988-30319034(Top 67%)11328(Top 70%)11328(Top 504%)
25.2M25.20 mi0.35 mi6974-526011-236011-2311619(Top 41%)7753(Top 48%)7753(Top 345%)
Finish26.22 mi1.02 mi7155-1816101-906101-9012719(Top 45%)8382(Top 52%)8382(Top 373%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

7346

Males

6509

M40-44

6509

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6687

Males

6032

M40-44

6032

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

7346

Males

6509

M40-44

6509

15K→20K

9.3 - 12.4 mi

Top 24%
×5story building
+106ft-86ft

Overall

6680

Males

5962

M40-44

5962

20K→Half

12.4 - 13.1 mi

Top 15%
×2story building
+19ft-37ft

Overall

4372

Males

4094

M40-44

4094

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5681

Males

5143

M40-44

5143

25K→30K

15.5 - 18.6 mi

Top 19%
×9story building
+181ft-148ft

Overall

5484

Males

4924

M40-44

4924

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6418

Males

5471

M40-44

5471

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

7053

Males

5704

M40-44

5704

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

8004

Males

6289

M40-44

6289

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9802

Males

7120

M40-44

7120

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12520

Males

8415

M40-44

8415

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19034

Males

11328

M40-44

11328

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11619

Males

7753

M40-44

7753

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12719

Males

8382

M40-44

8382

Passing Analysis

Category:
Athletes Passed
1486
Passed By
1948
Net Change
-462
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6693
5K → 10K216182+34#6693#6659
10K → 15K73315-242#6659#6901
15K → 20K16284+78#6901#6823
20K → Half1092+107#6823#6716
Half → 25K26127+234#6716#6482
25K → 30K34936+313#6482#6169
30K → 20M8757+30#6169#6139
20M → 21M7172-1#6139#6140
21M → 35K3650-14#6140#6154
35K → 23M51168-117#6154#6271
23M → 24M27191-164#6271#6435
24M → 40K9496-487#6435#6922
40K → 25.2M961-52#6922#6974
25.2M → Finish26207-181#6974#7155
TOTALS14861948-462
📊

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