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BOSTON MARATHON 2025

Man Kin Ki

Bib: 9265•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 36%
Gender (Male)
#0 / 16105
Top 49%
Masters (Masters Men)
#0 / 10463
Top 38%
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
6:47/mi
21:05
↑ 97↓ 3451.5%
10K· 6.21 mi
6:50/mi
42:19
↑ 79↓ 1380.4%
15K· 9.32 mi
6:55/mi
1:03:47
↑ 67↓ 78
20K· 12.43 mi
7:05/mi
1:25:47
↑ 106↓ 860.1%
Half· 13.11 mi
6:53/mi
1:30:29
↑ 19↓ 370.5%
25K· 15.53 mi
7:31/mi
1:48:43
↑ 66↓ 880.2%
30K· 18.64 mi
8:08/mi
2:13:59
↑ 181↓ 1480.2%
20M
8:42/mi
2:25:49
↑ 64↓ 500.2%
21M
9:29/mi
2:35:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:41:31
↑ 17↓ 861.7%
23M
8:50/mi
2:52:35
↑ 23↓ 630.6%
24M
8:37/mi
3:01:12
↓ 821.3%
40K· 24.85 mi
8:49/mi
3:08:44
↓ 200.3%
25.2M
9:23/mi
3:11:58
↑ 13↓ 160.2%
Finish· 26.22 mi
8:16/mi
3:20:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:29
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:49:54
Pace8:23 /mi
📊Positive Split: 21.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:2121:056:4721:05
6:47
-
10K
6.21 mi11:07:3542:196:4921:14
6:50
+0:03
15K
9.32 mi11:29:031:03:476:5121:28
6:55
+0:05
20K
12.43 mi11:51:031:25:476:5422:00
7:05
+0:10
Half
13.11 mi11:55:451:30:296:544:42
6:53
-0:12
25K
15.53 mi12:13:591:48:437:0018:14
7:31
+0:38
30K
18.64 mi12:39:152:13:597:1125:16
8:08
+0:37
20M
20.00 mi12:51:052:25:497:1711:50
8:42
+0:34
21M
21.00 mi13:00:342:35:187:249:29
9:29
+0:47
35K
21.75 mi13:06:472:41:317:266:13
8:19
-1:10
23M
23.00 mi13:17:512:52:357:3011:04
8:50
+0:31
24M
24.00 mi13:26:283:01:127:338:37
8:37
-0:13
40K
24.85 mi13:34:003:08:447:367:32
8:49
+0:12
25.2M
25.20 mi13:37:143:11:587:373:14
9:23
+0:34
Finish
26.22 mi13:45:393:20:237:398:25
8:16
-1:07

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

6:47 /mi

Average Pace

7:39 /mi

Slowest Pace

9:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:43

54% of race

Time at Steady Pace

1:00:21

30% of race

Time at Slower Pace

31:19

16% of race

Average Pace: 7:39 /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 mi10:46:2121:056:4721:05
6:47
#6216
10K
6.21 mi11:07:3542:196:4921:14
6:50
#6408
15K
9.32 mi11:29:031:03:476:5121:28
6:55
#6606
20K
12.43 mi11:51:031:25:476:5422:00
7:05
#6842
Half
13.11 mi11:55:451:30:296:544:42
6:53
#6844
25K
15.53 mi12:13:591:48:437:0018:14
7:31
#7259
30K
18.64 mi12:39:152:13:597:1125:16
8:08
#7948
20M
20.00 mi12:51:052:25:497:1711:50
8:42
#8457
21M
21.00 mi13:00:342:35:187:249:29
9:29
#8949
35K
21.75 mi13:06:472:41:317:266:13
8:19
#9140
23M
23.00 mi13:17:512:52:357:3011:04
8:50
#9523
24M
24.00 mi13:26:283:01:127:338:37
8:37
#9805
40K
24.85 mi13:34:003:08:447:367:32
8:49
#10018
25.2M
25.20 mi13:37:143:11:587:373:14
9:23
#10087
Finish
26.22 mi13:45:393:20:237:398:25
8:16
#10255
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6216569656967025(Top 25%)6268(Top 39%)6268(Top 279%)
10K6.21 mi3.10 mi6408-1925845-1495845-1496744(Top 24%)6082(Top 38%)6082(Top 271%)
15K9.32 mi3.11 mi6606-1985967-1225967-1227025(Top 25%)6268(Top 39%)6268(Top 279%)
20K12.43 mi3.11 mi6842-2366162-1956162-1957410(Top 26%)6497(Top 40%)6497(Top 289%)
Half13.11 mi0.68 mi6844-26160+26160+26854(Top 24%)6119(Top 38%)6119(Top 272%)
25K15.53 mi2.42 mi7259-4156438-2786438-27810128(Top 36%)7953(Top 49%)7953(Top 354%)
30K18.64 mi3.11 mi7948-6896840-4026840-40212314(Top 43%)8821(Top 55%)8821(Top 393%)
20M20.00 mi1.36 mi8457-5097124-2847124-28415081(Top 53%)9945(Top 62%)9945(Top 443%)
21M21.00 mi1.00 mi8949-4927375-2517375-25115973(Top 56%)10233(Top 64%)10233(Top 455%)
35K21.75 mi0.75 mi9140-1917456-817456-8114250(Top 50%)9381(Top 58%)9381(Top 417%)
23M23.00 mi1.25 mi9523-3837633-1777633-17715295(Top 54%)9757(Top 61%)9757(Top 434%)
24M24.00 mi1.00 mi9805-2827734-1017734-10115222(Top 54%)9675(Top 60%)9675(Top 431%)
40K24.85 mi0.85 mi10018-2137812-787812-7815214(Top 54%)9525(Top 59%)9525(Top 424%)
25.2M25.20 mi0.35 mi10087-697828-167828-1613795(Top 49%)8829(Top 55%)8829(Top 393%)
Finish26.22 mi1.02 mi10255-1687875-477875-4714634(Top 52%)9306(Top 58%)9306(Top 414%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21story building
+97ft-345ft

Overall

7025

Males

6268

M40-44

6268

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6744

Males

6082

M40-44

6082

10K→15K

6.2 - 9.3 mi

Top 25%
×3story building
+67ft-78ft

Overall

7025

Males

6268

M40-44

6268

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7410

Males

6497

M40-44

6497

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6854

Males

6119

M40-44

6119

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10128

Males

7953

M40-44

7953

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

12314

Males

8821

M40-44

8821

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

15081

Males

9945

M40-44

9945

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15973

Males

10233

M40-44

10233

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14250

Males

9381

M40-44

9381

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

15295

Males

9757

M40-44

9757

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15222

Males

9675

M40-44

9675

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15214

Males

9525

M40-44

9525

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13795

Males

8829

M40-44

8829

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14634

Males

9306

M40-44

9306

Passing Analysis

Category:
Athletes Passed
607
Passed By
4643
Net Change
-4039
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6216
5K → 10K116308-192#6216#6408
10K → 15K97295-198#6408#6606
15K → 20K63299-236#6606#6842
20K → Half2123-2#6842#6844
Half → 25K46461-415#6844#7259
25K → 30K52741-689#7259#7948
30K → 20M20529-509#7948#8457
20M → 21M15507-492#8457#8949
21M → 35K27218-191#8949#9140
35K → 23M42425-383#9140#9523
23M → 24M30312-282#9523#9805
24M → 40K30241-213#9805#10018
40K → 25.2M1786-69#10018#10087
25.2M → Finish31198-168#10087#10255
TOTALS6074643-4039
📊

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