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BOSTON MARATHON 2023

Kiduck Um

Bib: 21733•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:14
Rank: #20818
Start → 5K
28:14 | 9:05/mi
10K· 6.21 mi
53:52
Rank: #18933 (+1885)
5K → 10K
25:38 | 8:15/mi
15K· 9.32 mi
1:20:40
Rank: #18777 (+156)
10K → 15K
26:48 | 8:38/mi
20K· 12.43 mi
1:56:14
Rank: #21678 (-2901)
15K → 20K
35:34 | 11:27/mi
Half· 13.11 mi
2:02:45
Rank: #21709 (-31)
20K → Half
6:31 | 9:33/mi
25K· 15.53 mi
2:41:18
Rank: #23932 (-2223)
Half → 25K
38:33 | 15:54/mi
30K· 18.64 mi
3:16:36
Rank: #23898 (+34)
25K → 30K
35:18 | 11:22/mi
20M
3:37:44
Rank: #24356 (-458)
30K → 20M
21:08 | 15:33/mi
21M
3:53:19
Rank: #24545 (-189)
20M → 21M
15:35 | 15:35/mi
35K· 21.75 mi
4:03:09
Rank: #24626 (-81)
21M → 35K
9:50 | 13:09/mi
23M
4:19:43
Rank: #24691 (-65)
35K → 23M
16:34 | 13:14/mi
24M
4:34:22
Rank: #24860 (-169)
23M → 24M
14:39 | 14:39/mi
40K· 24.85 mi
4:47:45
Rank: #25007 (-147)
24M → 40K
13:23 | 15:39/mi
25.2M
4:53:10
Rank: #25046 (-39)
40K → 25.2M
5:25 | 15:42/mi
Finish· 26.22 mi
5:06:48
Rank: #25116 (-70)
25.2M → Finish
13:38 | 13:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:45
Pace9:22 /mi
2nd Half
Distance13.11 mi
Time3:04:03
Pace14:02 /mi
📊Positive Split: 49.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:3828:149:0528:14
9:05
-
10K
6.21 mi12:10:1653:528:4025:38
8:15
-0:50
15K
9.32 mi12:37:041:20:408:3926:48
8:38
+0:23
20K
12.43 mi13:12:381:56:149:2135:34
11:27
+2:49
Half
13.11 mi13:19:092:02:459:226:31
9:33
-1:54
25K
15.53 mi13:57:422:41:1810:2338:33
15:54
+6:21
30K
18.64 mi14:33:003:16:3610:3335:18
11:22
-4:32
20M
20.00 mi14:54:083:37:4410:5321:08
15:33
+4:11
21M
21.00 mi15:09:433:53:1911:0715:35
15:35
+0:02
35K
21.75 mi15:19:334:03:0911:119:50
13:09
-2:26
23M
23.00 mi15:36:074:19:4311:1816:34
13:14
+0:05
24M
24.00 mi15:50:464:34:2211:2614:39
14:39
+1:25
40K
24.85 mi16:04:094:47:4511:3513:23
15:39
+1:00
25.2M
25.20 mi16:09:344:53:1011:385:25
15:42
+0:03
Finish
26.22 mi16:23:125:06:4811:4313:38
13:23
-2:19

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

8:15 /mi

Average Pace

11:43 /mi

Slowest Pace

15:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:03

52% of race

Time at Steady Pace

40:02

13% of race

Time at Slower Pace

1:48:43

35% of race

Average Pace: 11:42 /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 mi11:44:3828:149:0528:14
9:05
#20818
10K
6.21 mi12:10:1653:528:4025:38
8:15
#18933
15K
9.32 mi12:37:041:20:408:3926:48
8:38
#18777
20K
12.43 mi13:12:381:56:149:2135:34
11:27
#21678
Half
13.11 mi13:19:092:02:459:226:31
9:33
#21709
25K
15.53 mi13:57:422:41:1810:2338:33
15:54
#23932
30K
18.64 mi14:33:003:16:3610:3335:18
11:22
#23898
20M
20.00 mi14:54:083:37:4410:5321:08
15:33
#24356
21M
21.00 mi15:09:433:53:1911:0715:35
15:35
#24545
35K
21.75 mi15:19:334:03:0911:119:50
13:09
#24626
23M
23.00 mi15:36:074:19:4311:1816:34
13:14
#24691
24M
24.00 mi15:50:464:34:2211:2614:39
14:39
#24860
40K
24.85 mi16:04:094:47:4511:3513:23
15:39
#25007
25.2M
25.20 mi16:09:344:53:1011:385:25
15:42
#25046
Finish
26.22 mi16:23:125:06:4811:4313:38
13:23
#25116
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20818125211252118601(Top 70%)11726(Top 77%)11726(Top 1056%)
10K6.21 mi3.10 mi18933+188511811+71011811+71016588(Top 62%)10941(Top 72%)10941(Top 986%)
15K9.32 mi3.11 mi18777+15611767+4411767+4418601(Top 70%)11726(Top 77%)11726(Top 1056%)
20K12.43 mi3.11 mi21678-290113009-124213009-124225181(Top 95%)14570(Top 96%)14570(Top 1313%)
Half13.11 mi0.68 mi21709-3113023-1413023-1422265(Top 84%)13324(Top 88%)13324(Top 1200%)
25K15.53 mi2.42 mi23932-222314047-102414047-102426600(Top 100%)15165(Top 100%)15165(Top 1366%)
30K18.64 mi3.11 mi23898+3414016+3114016+3123661(Top 89%)13828(Top 91%)13828(Top 1246%)
20M20.00 mi1.36 mi24356-45814202-18614202-18626433(Top 99%)15075(Top 99%)15075(Top 1358%)
21M21.00 mi1.00 mi24545-18914283-8114283-8126058(Top 98%)14890(Top 98%)14890(Top 1341%)
35K21.75 mi0.75 mi24626-8114307-2414307-2425664(Top 96%)14663(Top 97%)14663(Top 1321%)
23M23.00 mi1.25 mi24691-6514328-2114328-2125302(Top 95%)14486(Top 95%)14486(Top 1305%)
24M24.00 mi1.00 mi24860-16914391-6314391-6326317(Top 99%)14989(Top 99%)14989(Top 1350%)
40K24.85 mi0.85 mi25007-14714450-5914450-5926348(Top 99%)15005(Top 99%)15005(Top 1352%)
25.2M25.20 mi0.35 mi25046-3914465-1514465-1526010(Top 98%)14813(Top 98%)14813(Top 1335%)
Finish26.22 mi1.02 mi25116-7014495-3014495-3026146(Top 98%)14880(Top 98%)14880(Top 1341%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

18601

Males

11726

M60-64

11726

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

16588

Males

10941

M60-64

10941

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

18601

Males

11726

M60-64

11726

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

25181

Males

14570

M60-64

14570

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

22265

Males

13324

M60-64

13324

Half→25K

13.1 - 15.5 mi

Top 100%
×4stories
+66ft-88ft

Overall

26600

Males

15165

M60-64

15165

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

23661

Males

13828

M60-64

13828

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

26433

Males

15075

M60-64

15075

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

26058

Males

14890

M60-64

14890

21M→35K

21.0 - 21.8 mi

Top 96%
×7stories
+17ft-86ft

Overall

25664

Males

14663

M60-64

14663

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

25302

Males

14486

M60-64

14486

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

26317

Males

14989

M60-64

14989

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26348

Males

15005

M60-64

15005

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26010

Males

14813

M60-64

14813

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2stories
+22ft-21ft

Overall

26146

Males

14880

M60-64

14880

Passing Analysis

Category:
Athletes Passed
2374
Passed By
6672
Net Change
-4298
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20818
5K → 10K189712+1885#20818#18933
10K → 15K277121+156#18933#18777
15K → 20K22903-2901#18777#21678
20K → Half1647-31#21678#21709
Half → 25K12224-2223#21709#23932
25K → 30K136102+34#23932#23898
30K → 20M2460-458#23898#24356
20M → 21M6195-189#24356#24545
21M → 35K485-81#24545#24626
35K → 23M2489-65#24626#24691
23M → 24M1170-169#24691#24860
24M → 40K3150-147#24860#25007
40K → 25.2M140-39#25007#25046
25.2M → Finish474-70#25046#25116
TOTALS23746672-4298
📊

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