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BOSTON MARATHON 2025

Yukai Tung

Bib: 10841•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:11
Rank: #11897
Start → 5K
7:28/mi
23:11 split
10K· 6.21 mi
47:09
Rank: #12911 (-1014)
5K → 10K
7:43/mi
23:58 split
15K· 9.32 mi
1:11:48
Rank: #13770 (-859)
10K → 15K
7:56/mi
24:39 split
20K· 12.43 mi
1:37:50
Rank: #14851 (-1081)
15K → 20K
8:23/mi
26:02 split
Half· 13.11 mi
1:43:54
Rank: #15318 (-467)
20K → Half
8:54/mi
6:04 split
25K· 15.53 mi
2:03:42
Rank: #15270 (+48)
Half → 25K
8:10/mi
19:48 split
30K· 18.64 mi
2:29:39
Rank: #14944 (+326)
25K → 30K
8:21/mi
25:57 split
20M
2:40:52
Rank: #14691 (+253)
30K → 20M
8:15/mi
11:13 split
21M
2:49:55
Rank: #14613 (+78)
20M → 21M
9:03/mi
9:03 split
35K· 21.75 mi
2:55:49
Rank: #14461 (+152)
21M → 35K
7:53/mi
5:54 split
23M
3:05:52
Rank: #14188 (+273)
35K → 23M
8:02/mi
10:03 split
24M
3:13:58
Rank: #14074 (+114)
23M → 24M
8:06/mi
8:06 split
40K· 24.85 mi
3:21:07
Rank: #13976 (+98)
24M → 40K
8:22/mi
7:09 split
25.2M
3:24:14
Rank: #13924 (+52)
40K → 25.2M
9:02/mi
3:07 split
Finish· 26.22 mi
3:37:26
Rank: #15250 (-1326)
25.2M → Finish
12:57/mi
13:12 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:54
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:53:32
Pace8:40 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4023:117:2823:11
7:28
-
10K
6.21 mi11:13:3847:097:3523:58
7:43
+0:15
15K
9.32 mi11:38:171:11:487:4224:39
7:56
+0:13
20K
12.43 mi12:04:191:37:507:5226:02
8:23
+0:27
Half
13.11 mi12:10:231:43:547:566:04
8:54
+0:31
25K
15.53 mi12:30:112:03:427:5819:48
8:10
-0:44
30K
18.64 mi12:56:082:29:398:0225:57
8:21
+0:11
20M
20.00 mi13:07:212:40:528:0311:13
8:15
-0:06
21M
21.00 mi13:16:242:49:558:059:03
9:03
+0:48
35K
21.75 mi13:22:182:55:498:055:54
7:53
-1:10
23M
23.00 mi13:32:213:05:528:0510:03
8:02
+0:09
24M
24.00 mi13:40:273:13:588:058:06
8:06
+0:04
40K
24.85 mi13:47:363:21:078:057:09
8:22
+0:16
25.2M
25.20 mi13:50:433:24:148:063:07
9:02
+0:40
Finish
26.22 mi14:03:553:37:268:1813:12
12:57
+3:55

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

7:28 /mi

Average Pace

8:18 /mi

Slowest Pace

12:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

23:11

11% of race

Time at Steady Pace

2:42:49

75% of race

Time at Slower Pace

31:26

14% of race

Average Pace: 8:18 /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 mi10:49:4023:117:2823:11
7:28
#11897
10K
6.21 mi11:13:3847:097:3523:58
7:43
#12911
15K
9.32 mi11:38:171:11:487:4224:39
7:56
#13770
20K
12.43 mi12:04:191:37:507:5226:02
8:23
#14851
Half
13.11 mi12:10:231:43:547:566:04
8:54
#15318
25K
15.53 mi12:30:112:03:427:5819:48
8:10
#15270
30K
18.64 mi12:56:082:29:398:0225:57
8:21
#14944
20M
20.00 mi13:07:212:40:528:0311:13
8:15
#14691
21M
21.00 mi13:16:242:49:558:059:03
9:03
#14613
35K
21.75 mi13:22:182:55:498:055:54
7:53
#14461
23M
23.00 mi13:32:213:05:528:0510:03
8:02
#14188
24M
24.00 mi13:40:273:13:588:058:06
8:06
#14074
40K
24.85 mi13:47:363:21:078:057:09
8:22
#13976
25.2M
25.20 mi13:50:433:24:148:063:07
9:02
#13924
Finish
26.22 mi14:03:553:37:268:1813:12
12:57
#15250
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi118979132913215504(Top 55%)10595(Top 66%)10595(Top 444%)
10K6.21 mi3.10 mi12911-10149588-4569588-45614017(Top 49%)10010(Top 62%)10010(Top 420%)
15K9.32 mi3.11 mi13770-8599895-3079895-30715504(Top 55%)10595(Top 66%)10595(Top 444%)
20K12.43 mi3.11 mi14851-108110306-41110306-41117412(Top 61%)11348(Top 70%)11348(Top 476%)
Half13.11 mi0.68 mi15318-46710512-20610512-20621301(Top 75%)13031(Top 81%)13031(Top 546%)
25K15.53 mi2.42 mi15270+4810465+4710465+4715082(Top 53%)10266(Top 64%)10266(Top 430%)
30K18.64 mi3.11 mi14944+32610261+20410261+20413836(Top 49%)9527(Top 59%)9527(Top 399%)
20M20.00 mi1.36 mi14691+25310127+13410127+13412175(Top 43%)8617(Top 54%)8617(Top 361%)
21M21.00 mi1.00 mi14613+7810068+5910068+5913789(Top 49%)9241(Top 57%)9241(Top 387%)
35K21.75 mi0.75 mi14461+1529990+789990+7811460(Top 40%)8094(Top 50%)8094(Top 339%)
23M23.00 mi1.25 mi14188+2739813+1779813+17710222(Top 36%)7355(Top 46%)7355(Top 308%)
24M24.00 mi1.00 mi14074+1149733+809733+8011894(Top 42%)8120(Top 50%)8120(Top 340%)
40K24.85 mi0.85 mi13976+989662+719662+7112534(Top 44%)8304(Top 52%)8304(Top 348%)
25.2M25.20 mi0.35 mi13924+529632+309632+3011993(Top 42%)8004(Top 50%)8004(Top 335%)
Finish26.22 mi1.02 mi15250-132610192-56010192-56027596(Top 97%)15613(Top 97%)15613(Top 654%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

15504

Males

10595

M45-49

10595

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

14017

Males

10010

M45-49

10010

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

15504

Males

10595

M45-49

10595

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

17412

Males

11348

M45-49

11348

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21301

Males

13031

M45-49

13031

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

15082

Males

10266

M45-49

10266

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13836

Males

9527

M45-49

9527

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12175

Males

8617

M45-49

8617

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13789

Males

9241

M45-49

9241

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

11460

Males

8094

M45-49

8094

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10222

Males

7355

M45-49

7355

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11894

Males

8120

M45-49

8120

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12534

Males

8304

M45-49

8304

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11993

Males

8004

M45-49

8004

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

27596

Males

15613

M45-49

15613

Passing Analysis

Category:
Athletes Passed
1919
Passed By
5272
Net Change
-3353
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11897
5K → 10K411055-1014#11897#12911
10K → 15K43902-859#12911#13770
15K → 20K441125-1081#13770#14851
20K → Half2469-467#14851#15318
Half → 25K197149+48#15318#15270
25K → 30K41286+326#15270#14944
30K → 20M27017+253#14944#14691
20M → 21M13658+78#14691#14613
21M → 35K16210+152#14613#14461
35K → 23M2818+273#14461#14188
23M → 24M14228+114#14188#14074
24M → 40K12224+98#14074#13976
40K → 25.2M6614+52#13976#13924
25.2M → Finish11327-1326#13924#15250
TOTALS19195272-3353
📊

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