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BOSTON MARATHON 2026

Keumhwan Bae

Bib: 21921•M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M60-64)
#0 / 1514
Top 44%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
26:07
3.11 mi
Rank: #19528
Start → 5K
26:07 | 8:25/mi
10K
51:43
6.21 mi
Rank: #19159 (+369)
5K → 10K
25:36 | 8:15/mi
15K
1:17:06
9.32 mi
Rank: #18835 (+324)
10K → 15K
25:23 | 8:11/mi
20K
1:43:14
12.43 mi
Rank: #18799 (+36)
15K → 20K
26:08 | 8:25/mi
HALF
1:48:51
13.11 mi
Rank: #18794 (+5)
20K → HALF
5:37 | 8:15/mi
25K
2:08:45
15.53 mi
Rank: #18457 (+337)
HALF → 25K
19:54 | 8:13/mi
30K
2:34:56
18.64 mi
Rank: #18098 (+359)
25K → 30K
26:11 | 8:26/mi
20M
2:46:26
20.00 mi
Rank: #17906 (+192)
30K → 20M
11:30 | 8:28/mi
21M
2:56:57
21.00 mi
Rank: #18230 (-324)
20M → 21M
10:31 | 10:31/mi
35K
3:03:06
21.75 mi
Rank: #18147 (+83)
21M → 35K
6:09 | 8:14/mi
23M
3:14:16
23.00 mi
Rank: #18132 (+15)
35K → 23M
11:10 | 8:56/mi
24M
3:22:43
24.00 mi
Rank: #18053 (+79)
23M → 24M
8:27 | 8:27/mi
40K
3:30:35
24.85 mi
Rank: #18105 (-52)
24M → 40K
7:52 | 9:13/mi
25.2M
3:34:23
25.20 mi
Rank: #18209 (-104)
40K → 25.2M
3:48 | 11:02/mi
FINISH
3:44:21
26.22 mi
Rank: #18496 (-287)
25.2M → FINISH
9:58 | 9:47/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:48:51
Pace8:19 /mi
2nd Half
Distance13.11 mi
Time1:55:30
Pace8:49 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:1926:078:2526:07
8:25
-
10K
6.21 mi11:52:5551:438:2025:36
8:15
-0:10
15K
9.32 mi12:18:181:17:068:1725:23
8:11
-0:04
20K
12.43 mi12:44:261:43:148:1926:08
8:25
+0:14
HALF
13.11 mi12:50:031:48:518:195:37
8:15
-0:10
25K
15.53 mi13:09:572:08:458:1819:54
8:13
-0:02
30K
18.64 mi13:36:082:34:568:1926:11
8:26
+0:13
20M
20.00 mi13:47:382:46:268:2011:30
8:28
+0:02
21M
21.00 mi13:58:092:56:578:2610:31
10:31
+2:03
35K
21.75 mi14:04:183:03:068:266:09
8:14
-2:17
23M
23.00 mi14:15:283:14:168:2711:10
8:56
+0:42
24M
24.00 mi14:23:553:22:438:278:27
8:27
-0:29
40K
24.85 mi14:31:473:30:358:297:52
9:13
+0:46
25.2M
25.20 mi14:35:353:34:238:313:48
11:02
+1:49
FINISH
26.22 mi14:45:333:44:218:349:58
9:47
-1:15

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:11 /mi

Average Pace

8:34 /mi

Slowest Pace

11:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:01:02

81% of race

Time at Slower Pace

43:19

19% of race

Average Pace: 8:33 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:27:1926:078:2526:07
8:25
#19528
10K
6.21 mi11:52:5551:438:2025:36
8:15
#19159
15K
9.32 mi12:18:181:17:068:1725:23
8:11
#18835
20K
12.43 mi12:44:261:43:148:1926:08
8:25
#18799
HALF
13.11 mi12:50:031:48:518:195:37
8:15
#18794
25K
15.53 mi13:09:572:08:458:1819:54
8:13
#18457
30K
18.64 mi13:36:082:34:568:1926:11
8:26
#18098
20M
20.00 mi13:47:382:46:268:2011:30
8:28
#17906
21M
21.00 mi13:58:092:56:578:2610:31
10:31
#18230
35K
21.75 mi14:04:183:03:068:266:09
8:14
#18147
23M
23.00 mi14:15:283:14:168:2711:10
8:56
#18132
24M
24.00 mi14:23:553:22:438:278:27
8:27
#18053
40K
24.85 mi14:31:473:30:358:297:52
9:13
#18105
25.2M
25.20 mi14:35:353:34:238:313:48
11:02
#18209
FINISH
26.22 mi14:45:333:44:218:349:58
9:47
#18496
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19528120651206518140(Top 63%)11514(Top 70%)11514(Top 761%)
10K6.21 mi3.10 mi19159+36911923+14211923+14218789(Top 65%)11803(Top 72%)11803(Top 780%)
15K9.32 mi3.11 mi18835+32411800+12311800+12318140(Top 63%)11514(Top 70%)11514(Top 761%)
20K12.43 mi3.11 mi18799+3611774+2611774+2618791(Top 65%)11752(Top 72%)11752(Top 776%)
HALF13.11 mi0.68 mi18794+511770+411770+418598(Top 64%)11696(Top 72%)11696(Top 773%)
25K15.53 mi2.42 mi18457+33711618+15211618+15216832(Top 58%)10874(Top 67%)10874(Top 718%)
30K18.64 mi3.11 mi18098+35911428+19011428+19016431(Top 57%)10604(Top 65%)10604(Top 700%)
20M20.00 mi1.36 mi17906+19211328+10011328+10016008(Top 55%)10310(Top 63%)10310(Top 681%)
21M21.00 mi1.00 mi18230-32411440-11211440-11221994(Top 76%)13020(Top 80%)13020(Top 860%)
35K21.75 mi0.75 mi18147+8311398+4211398+4215941(Top 55%)10180(Top 62%)10180(Top 672%)
23M23.00 mi1.25 mi18132+1511367+3111367+3118106(Top 62%)11030(Top 68%)11030(Top 729%)
24M24.00 mi1.00 mi18053+7911314+5311314+5316588(Top 57%)10306(Top 63%)10306(Top 681%)
40K24.85 mi0.85 mi18105-5211317-311317-319270(Top 66%)11489(Top 70%)11489(Top 759%)
25.2M25.20 mi0.35 mi18209-10411365-4811365-4822377(Top 77%)13008(Top 80%)13008(Top 859%)
FINISH26.22 mi1.02 mi18496-28711473-10811473-10823225(Top 80%)13414(Top 82%)13414(Top 886%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21
+97ft-345ft

Overall

18140

Males

11514

M60-64

11514

5K→10K

3.1 - 6.2 mi

Top 65%
×5
+79ft-138ft

Overall

18789

Males

11803

M60-64

11803

10K→15K

6.2 - 9.3 mi

Top 63%
×3
+67ft-78ft

Overall

18140

Males

11514

M60-64

11514

15K→20K

9.3 - 12.4 mi

Top 65%
×5
+106ft-86ft

Overall

18791

Males

11752

M60-64

11752

20K→HALF

12.4 - 13.1 mi

Top 64%
×2
+19ft-37ft

Overall

18598

Males

11696

M60-64

11696

HALF→25K

13.1 - 15.5 mi

Top 58%
×4
+66ft-88ft

Overall

16832

Males

10874

M60-64

10874

25K→30K

15.5 - 18.6 mi

Top 57%
×9
+181ft-148ft

Overall

16431

Males

10604

M60-64

10604

30K→20M

18.6 - 20.0 mi

Top 55%
×5
+64ft-50ft

Overall

16008

Males

10310

M60-64

10310

20M→21M

20.0 - 21.0 mi

Top 76%
×8
+106ft-24ft

Overall

21994

Males

13020

M60-64

13020

21M→35K

21.0 - 21.8 mi

Top 55%
×7
+17ft-86ft

Overall

15941

Males

10180

M60-64

10180

35K→23M

21.8 - 23.0 mi

Top 62%
×5
+23ft-63ft

Overall

18106

Males

11030

M60-64

11030

23M→24M

23.0 - 24.0 mi

Top 57%
×6
+12ft-82ft

Overall

16588

Males

10306

M60-64

10306

24M→40K

24.0 - 24.9 mi

Top 66%
×1
+6ft-20ft

Overall

19270

Males

11489

M60-64

11489

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1
+13ft-16ft

Overall

22377

Males

13008

M60-64

13008

25.2M→FINISH

25.2 - 26.2 mi

Top 80%
×2
+22ft-21ft

Overall

23225

Males

13414

M60-64

13414

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2424
Passed By
1392
Net Change
+1032
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19528
5K → 10K498129+369#19528#19159
10K → 15K38359+324#19159#18835
15K → 20K171135+36#18835#18799
20K → HALF3126+5#18799#18794
HALF → 25K34710+337#18794#18457
25K → 30K39031+359#18457#18098
30K → 20M20513+192#18098#17906
20M → 21M20344-324#17906#18230
21M → 35K9310+83#18230#18147
35K → 23M10186+15#18147#18132
23M → 24M11334+79#18132#18053
24M → 40K55107-52#18053#18105
40K → 25.2M2106-104#18105#18209
25.2M → FINISH15302-287#18209#18496
TOTALS24241392+1032
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing