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BOSTON MARATHON 2025

Fai Dicky Yim

Bib: 29029•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
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
8:20/mi
25:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:18/mi
51:39
↑ 79↓ 1380.4%
15K· 9.32 mi
8:31/mi
1:18:08
↑ 67↓ 78
20K· 12.43 mi
8:44/mi
1:45:17
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:51:05
↑ 19↓ 370.5%
25K· 15.53 mi
9:00/mi
2:12:55
↑ 66↓ 880.2%
30K· 18.64 mi
9:22/mi
2:42:00
↑ 181↓ 1480.2%
20M
9:38/mi
2:55:06
↑ 64↓ 500.2%
21M
10:47/mi
3:05:53
↑ 106↓ 241.6%
35K· 21.75 mi
9:17/mi
3:12:50
↑ 17↓ 861.7%
23M
9:36/mi
3:24:51
↑ 23↓ 630.6%
24M
9:20/mi
3:34:11
↓ 821.3%
40K· 24.85 mi
9:38/mi
3:42:25
↓ 200.3%
25.2M
11:04/mi
3:46:14
↑ 13↓ 160.2%
Finish· 26.22 mi
9:11/mi
3:55:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:05
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time2:04:31
Pace9:30 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:4325:538:2025:53
8:20
-
10K
6.21 mi12:12:2951:398:1925:46
8:18
-0:02
15K
9.32 mi12:38:581:18:088:2326:29
8:31
+0:13
20K
12.43 mi13:06:071:45:178:2827:09
8:44
+0:13
Half
13.11 mi13:11:551:51:058:285:48
8:30
-0:14
25K
15.53 mi13:33:452:12:558:3321:50
9:00
+0:30
30K
18.64 mi14:02:502:42:008:4129:05
9:22
+0:22
20M
20.00 mi14:15:562:55:068:4513:06
9:38
+0:16
21M
21.00 mi14:26:433:05:538:5110:47
10:47
+1:09
35K
21.75 mi14:33:403:12:508:526:57
9:17
-1:30
23M
23.00 mi14:45:413:24:518:5412:01
9:36
+0:19
24M
24.00 mi14:55:013:34:118:559:20
9:20
-0:16
40K
24.85 mi15:03:153:42:258:578:14
9:38
+0:18
25.2M
25.20 mi15:07:043:46:148:593:49
11:04
+1:26
Finish
26.22 mi15:16:263:55:369:009:22
9:11
-1:53

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

8:18 /mi

Average Pace

9:00 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:05

47% of race

Time at Steady Pace

1:49:55

47% of race

Time at Slower Pace

14:36

6% of race

Average Pace: 8:59 /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 mi11:46:4325:538:2025:53
8:20
#18909
10K
6.21 mi12:12:2951:398:1925:46
8:18
#18690
15K
9.32 mi12:38:581:18:088:2326:29
8:31
#18925
20K
12.43 mi13:06:071:45:178:2827:09
8:44
#19086
Half
13.11 mi13:11:551:51:058:285:48
8:30
#19086
25K
15.53 mi13:33:452:12:558:3321:50
9:00
#19237
30K
18.64 mi14:02:502:42:008:4129:05
9:22
#19281
20M
20.00 mi14:15:562:55:068:4513:06
9:38
#19319
21M
21.00 mi14:26:433:05:538:5110:47
10:47
#19441
35K
21.75 mi14:33:403:12:508:526:57
9:17
#19451
23M
23.00 mi14:45:413:24:518:5412:01
9:36
#19445
24M
24.00 mi14:55:013:34:118:559:20
9:20
#19423
40K
24.85 mi15:03:153:42:258:578:14
9:38
#19411
25.2M
25.20 mi15:07:043:46:148:593:49
11:04
#19443
Finish
26.22 mi15:16:263:55:369:009:22
9:11
#19469
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi18909119981199819468(Top 69%)12261(Top 76%)12261(Top 614%)
10K6.21 mi3.10 mi18690+21911905+9311905+9318502(Top 65%)11850(Top 74%)11850(Top 594%)
15K9.32 mi3.11 mi18925-23512003-9812003-9819468(Top 69%)12261(Top 76%)12261(Top 614%)
20K12.43 mi3.11 mi19086-16112079-7612079-7619616(Top 69%)12288(Top 76%)12288(Top 616%)
Half13.11 mi0.68 mi1908612074+512074+519176(Top 68%)12124(Top 75%)12124(Top 607%)
25K15.53 mi2.42 mi19237-15112134-6012134-6019915(Top 70%)12374(Top 77%)12374(Top 620%)
30K18.64 mi3.11 mi19281-4412110+2412110+2419382(Top 68%)12003(Top 75%)12003(Top 601%)
20M20.00 mi1.36 mi19319-3812100+1012100+1019733(Top 69%)12032(Top 75%)12032(Top 603%)
21M21.00 mi1.00 mi19441-12212130-3012130-3020772(Top 73%)12387(Top 77%)12387(Top 621%)
35K21.75 mi0.75 mi19451-1012122+812122+819522(Top 69%)11741(Top 73%)11741(Top 588%)
23M23.00 mi1.25 mi19445+612081+4112081+4119067(Top 67%)11473(Top 71%)11473(Top 575%)
24M24.00 mi1.00 mi19423+2212051+3012051+3018955(Top 67%)11391(Top 71%)11391(Top 571%)
40K24.85 mi0.85 mi19411+1212031+2012031+2019193(Top 68%)11421(Top 71%)11421(Top 572%)
25.2M25.20 mi0.35 mi19443-3212035-412035-420814(Top 73%)12190(Top 76%)12190(Top 611%)
Finish26.22 mi1.02 mi19469-2612021+1412021+1419902(Top 70%)11758(Top 73%)11758(Top 589%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

19468

Males

12261

M50-54

12261

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

18502

Males

11850

M50-54

11850

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

19468

Males

12261

M50-54

12261

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19616

Males

12288

M50-54

12288

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19176

Males

12124

M50-54

12124

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19915

Males

12374

M50-54

12374

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19382

Males

12003

M50-54

12003

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

19733

Males

12032

M50-54

12032

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20772

Males

12387

M50-54

12387

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19522

Males

11741

M50-54

11741

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19067

Males

11473

M50-54

11473

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

18955

Males

11391

M50-54

11391

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19193

Males

11421

M50-54

11421

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20814

Males

12190

M50-54

12190

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

19902

Males

11758

M50-54

11758

Passing Analysis

Category:
Athletes Passed
1548
Passed By
2108
Net Change
-560
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18909
5K → 10K390171+219#18909#18690
10K → 15K116351-235#18690#18925
15K → 20K151312-161#18925#19086
20K → Half35350#19086#19086
Half → 25K127278-151#19086#19237
25K → 30K203247-44#19237#19281
30K → 20M92130-38#19281#19319
20M → 21M66188-122#19319#19441
21M → 35K5565-10#19441#19451
35K → 23M9791+6#19451#19445
23M → 24M7452+22#19445#19423
24M → 40K6856+12#19423#19411
40K → 25.2M1951-32#19411#19443
25.2M → Finish5581-26#19443#19469
TOTALS15482108-560
📊

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