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BOSTON MARATHON 2025

Danyang Duan

Bib: 12477•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 26%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 25%
Division (M45-49)
#0 / 2386
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:15
Rank: #9132
Start → 5K
22:15 | 7:10/mi
10K· 6.21 mi
44:09
Rank: #8668 (+464)
5K → 10K
21:54 | 7:03/mi
15K· 9.32 mi
1:06:06
Rank: #8411 (+257)
10K → 15K
21:57 | 7:04/mi
20K· 12.43 mi
1:28:03
Rank: #8062 (+349)
15K → 20K
21:57 | 7:04/mi
Half· 13.11 mi
1:32:46
Rank: #8003 (+59)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:50:10
Rank: #7871 (+132)
Half → 25K
17:24 | 7:11/mi
30K· 18.64 mi
2:13:36
Rank: #7798 (+73)
25K → 30K
23:26 | 7:33/mi
20M
2:23:57
Rank: #7724 (+74)
30K → 20M
10:21 | 7:37/mi
21M
2:32:01
Rank: #7671 (+53)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:37:15
Rank: #7538 (+133)
21M → 35K
5:14 | 7:00/mi
23M
2:46:41
Rank: #7428 (+110)
35K → 23M
9:26 | 7:32/mi
24M
2:54:09
Rank: #7398 (+30)
23M → 24M
7:28 | 7:28/mi
40K· 24.85 mi
3:00:39
Rank: #7337 (+61)
24M → 40K
6:30 | 7:36/mi
25.2M
3:03:32
Rank: #7332 (+5)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:10:48
Rank: #7271 (+61)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:46
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:38:02
Pace7:29 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:2222:157:1022:15
7:10
-
10K
6.21 mi11:12:1644:097:0621:54
7:03
-0:07
15K
9.32 mi11:34:131:06:067:0621:57
7:04
+0:01
20K
12.43 mi11:56:101:28:037:0521:57
7:04
0:00
Half
13.11 mi12:00:531:32:467:054:43
6:55
-0:09
25K
15.53 mi12:18:171:50:107:0617:24
7:11
+0:16
30K
18.64 mi12:41:432:13:367:1023:26
7:33
+0:22
20M
20.00 mi12:52:042:23:577:1210:21
7:37
+0:04
21M
21.00 mi13:00:082:32:017:148:04
8:04
+0:27
35K
21.75 mi13:05:222:37:157:145:14
7:00
-1:04
23M
23.00 mi13:14:482:46:417:159:26
7:32
+0:32
24M
24.00 mi13:22:162:54:097:157:28
7:28
-0:04
40K
24.85 mi13:28:463:00:397:166:30
7:36
+0:08
25.2M
25.20 mi13:31:393:03:327:172:53
8:22
+0:46
Finish
26.22 mi13:38:553:10:487:177:16
7:08
-1:14

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

6:55 /mi

Average Pace

7:17 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:43

2% of race

Time at Steady Pace

1:57:57

62% of race

Time at Slower Pace

1:08:08

36% of race

Average Pace: 7:17 /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 mi10:50:2222:157:1022:15
7:10
#9132
10K
6.21 mi11:12:1644:097:0621:54
7:03
#8668
15K
9.32 mi11:34:131:06:067:0621:57
7:04
#8411
20K
12.43 mi11:56:101:28:037:0521:57
7:04
#8062
Half
13.11 mi12:00:531:32:467:054:43
6:55
#8003
25K
15.53 mi12:18:171:50:107:0617:24
7:11
#7871
30K
18.64 mi12:41:432:13:367:1023:26
7:33
#7798
20M
20.00 mi12:52:042:23:577:1210:21
7:37
#7724
21M
21.00 mi13:00:082:32:017:148:04
8:04
#7671
35K
21.75 mi13:05:222:37:157:145:14
7:00
#7538
23M
23.00 mi13:14:482:46:417:159:26
7:32
#7428
24M
24.00 mi13:22:162:54:097:157:28
7:28
#7398
40K
24.85 mi13:28:463:00:397:166:30
7:36
#7337
25.2M
25.20 mi13:31:393:03:327:172:53
8:22
#7332
Finish
26.22 mi13:38:553:10:487:177:16
7:08
#7271
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9132768476848066(Top 28%)6986(Top 43%)6986(Top 293%)
10K6.21 mi3.10 mi8668+4647399+2857399+2858270(Top 29%)7143(Top 44%)7143(Top 299%)
15K9.32 mi3.11 mi8411+2577227+1727227+1728066(Top 28%)6986(Top 43%)6986(Top 293%)
20K12.43 mi3.11 mi8062+3496997+2306997+2307280(Top 26%)6401(Top 40%)6401(Top 268%)
Half13.11 mi0.68 mi8003+596958+396958+396948(Top 24%)6168(Top 38%)6168(Top 259%)
25K15.53 mi2.42 mi7871+1326852+1066852+1067417(Top 26%)6388(Top 40%)6388(Top 268%)
30K18.64 mi3.11 mi7798+736752+1006752+1008023(Top 28%)6600(Top 41%)6600(Top 277%)
20M20.00 mi1.36 mi7724+746673+796673+797767(Top 27%)6288(Top 39%)6288(Top 264%)
21M21.00 mi1.00 mi7671+536597+766597+767709(Top 27%)6092(Top 38%)6092(Top 255%)
35K21.75 mi0.75 mi7538+1336482+1156482+1155310(Top 19%)4592(Top 29%)4592(Top 192%)
23M23.00 mi1.25 mi7428+1106375+1076375+1076802(Top 24%)5469(Top 34%)5469(Top 229%)
24M24.00 mi1.00 mi7398+306320+556320+557427(Top 26%)5774(Top 36%)5774(Top 242%)
40K24.85 mi0.85 mi7337+616255+656255+657398(Top 26%)5656(Top 35%)5656(Top 237%)
25.2M25.20 mi0.35 mi7332+56241+146241+147887(Top 28%)5828(Top 36%)5828(Top 244%)
Finish26.22 mi1.02 mi7271+616174+676174+676548(Top 23%)5060(Top 31%)5060(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

8066

Males

6986

M45-49

6986

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8270

Males

7143

M45-49

7143

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

8066

Males

6986

M45-49

6986

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

7280

Males

6401

M45-49

6401

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6948

Males

6168

M45-49

6168

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

7417

Males

6388

M45-49

6388

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

8023

Males

6600

M45-49

6600

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7767

Males

6288

M45-49

6288

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7709

Males

6092

M45-49

6092

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5310

Males

4592

M45-49

4592

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6802

Males

5469

M45-49

5469

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7427

Males

5774

M45-49

5774

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7398

Males

5656

M45-49

5656

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7887

Males

5828

M45-49

5828

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6548

Males

5060

M45-49

5060

Passing Analysis

Category:
Athletes Passed
2486
Passed By
625
Net Change
+1861
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9132
5K → 10K52056+464#9132#8668
10K → 15K30245+257#8668#8411
15K → 20K37122+349#8411#8062
20K → Half634+59#8062#8003
Half → 25K18351+132#8003#7871
25K → 30K224151+73#7871#7798
30K → 20M12147+74#7798#7724
20M → 21M12673+53#7724#7671
21M → 35K1363+133#7671#7538
35K → 23M14737+110#7538#7428
23M → 24M8252+30#7428#7398
24M → 40K9332+61#7398#7337
40K → 25.2M3025+5#7337#7332
25.2M → Finish8827+61#7332#7271
TOTALS2486625+1861
📊

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