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BOSTON MARATHON 2023

Lap Kong Tse

Bib: 27198•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
10:46/mi
33:28
↑ 97↓ 3451.5%
10K· 6.21 mi
11:18/mi
1:08:34
↑ 79↓ 1380.4%
15K· 9.32 mi
11:44/mi
1:45:01
↑ 67↓ 78
20K· 12.43 mi
12:13/mi
2:22:59
↑ 106↓ 860.1%
Half· 13.11 mi
11:48/mi
2:31:02
↑ 19↓ 370.5%
25K· 15.53 mi
12:34/mi
3:01:31
↑ 66↓ 880.2%
30K· 18.64 mi
13:03/mi
3:42:03
↑ 181↓ 1480.2%
20M
13:21/mi
4:00:11
↑ 64↓ 500.2%
21M
13:48/mi
4:13:59
↑ 106↓ 241.6%
35K· 21.75 mi
12:45/mi
4:23:31
↑ 17↓ 861.7%
23M
13:20/mi
4:40:13
↑ 23↓ 630.6%
24M
13:25/mi
4:53:38
↓ 821.3%
40K· 24.85 mi
14:31/mi
5:06:03
↓ 200.3%
25.2M
15:19/mi
5:11:20
↑ 13↓ 160.2%
Finish· 26.22 mi
13:40/mi
5:25:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:31:02
Pace11:31 /mi
2nd Half
Distance13.11 mi
Time2:54:14
Pace13:17 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0233:2810:4633:28
10:46
-
10K
6.21 mi12:25:081:08:3411:0235:06
11:18
+0:32
15K
9.32 mi13:01:351:45:0111:1636:27
11:44
+0:26
20K
12.43 mi13:39:332:22:5911:3037:58
12:13
+0:29
Half
13.11 mi13:47:362:31:0211:318:03
11:48
-0:25
25K
15.53 mi14:18:053:01:3111:4130:29
12:34
+0:46
30K
18.64 mi14:58:373:42:0311:5540:32
13:03
+0:29
20M
20.00 mi15:16:454:00:1112:0118:08
13:21
+0:18
21M
21.00 mi15:30:334:13:5912:0613:48
13:48
+0:27
35K
21.75 mi15:40:054:23:3112:079:32
12:45
-1:03
23M
23.00 mi15:56:474:40:1312:1116:42
13:20
+0:35
24M
24.00 mi16:10:124:53:3812:1413:25
13:25
+0:05
40K
24.85 mi16:22:375:06:0312:1912:25
14:31
+1:06
25.2M
25.20 mi16:27:545:11:2012:215:17
15:19
+0:48
Finish
26.22 mi16:41:505:25:1612:2513:56
13:40
-1:39

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

10:46 /mi

Average Pace

12:25 /mi

Slowest Pace

15:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:02

46% of race

Time at Steady Pace

2:08:48

40% of race

Time at Slower Pace

45:26

14% of race

Average Pace: 12:24 /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 mi11:50:0233:2810:4633:28
10:46
#25314
10K
6.21 mi12:25:081:08:3411:0235:06
11:18
#25645
15K
9.32 mi13:01:351:45:0111:1636:27
11:44
#25761
20K
12.43 mi13:39:332:22:5911:3037:58
12:13
#25795
Half
13.11 mi13:47:362:31:0211:318:03
11:48
#25800
25K
15.53 mi14:18:053:01:3111:4130:29
12:34
#25777
30K
18.64 mi14:58:373:42:0311:5540:32
13:03
#25720
20M
20.00 mi15:16:454:00:1112:0118:08
13:21
#25698
21M
21.00 mi15:30:334:13:5912:0613:48
13:48
#25670
35K
21.75 mi15:40:054:23:3112:079:32
12:45
#25666
23M
23.00 mi15:56:474:40:1312:1116:42
13:20
#25661
24M
24.00 mi16:10:124:53:3812:1413:25
13:25
#25687
40K
24.85 mi16:22:375:06:0312:1912:25
14:31
#25703
25.2M
25.20 mi16:27:545:11:2012:215:17
15:19
#25714
Finish
26.22 mi16:41:505:25:1612:2513:56
13:40
#25762
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi25314146751467525884(Top 97%)14889(Top 98%)14889(Top 661%)
10K6.21 mi3.10 mi25645-33114797-12214797-12225784(Top 97%)14859(Top 98%)14859(Top 660%)
15K9.32 mi3.11 mi25761-11614849-5214849-5225884(Top 97%)14889(Top 98%)14889(Top 661%)
20K12.43 mi3.11 mi25795-34148491484925784(Top 97%)14827(Top 98%)14827(Top 658%)
Half13.11 mi0.68 mi25800-514852-314852-325725(Top 97%)14788(Top 97%)14788(Top 657%)
25K15.53 mi2.42 mi25777+2314840+1214840+1225603(Top 96%)14731(Top 97%)14731(Top 654%)
30K18.64 mi3.11 mi25720+5714804+3614804+3625456(Top 96%)14617(Top 96%)14617(Top 649%)
20M20.00 mi1.36 mi25698+2214787+1714787+1725440(Top 96%)14595(Top 96%)14595(Top 648%)
21M21.00 mi1.00 mi25670+2814776+1114776+1124863(Top 93%)14307(Top 94%)14307(Top 635%)
35K21.75 mi0.75 mi25666+414770+614770+625371(Top 95%)14501(Top 96%)14501(Top 644%)
23M23.00 mi1.25 mi25661+514764+614764+625391(Top 95%)14525(Top 96%)14525(Top 645%)
24M24.00 mi1.00 mi25687-2614767-314767-325753(Top 97%)14683(Top 97%)14683(Top 652%)
40K24.85 mi0.85 mi25703-1614776-914776-925959(Top 98%)14782(Top 97%)14782(Top 656%)
25.2M25.20 mi0.35 mi25714-1114778-214778-225840(Top 97%)14725(Top 97%)14725(Top 654%)
Finish26.22 mi1.02 mi25762-4814792-1414792-1426256(Top 99%)14940(Top 98%)14940(Top 663%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

25884

Males

14889

M45-49

14889

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

25784

Males

14859

M45-49

14859

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

25884

Males

14889

M45-49

14889

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

25784

Males

14827

M45-49

14827

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

25725

Males

14788

M45-49

14788

Half→25K

13.1 - 15.5 mi

Top 96%
×4story building
+66ft-88ft

Overall

25603

Males

14731

M45-49

14731

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

25456

Males

14617

M45-49

14617

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25440

Males

14595

M45-49

14595

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24863

Males

14307

M45-49

14307

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25371

Males

14501

M45-49

14501

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

25391

Males

14525

M45-49

14525

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25753

Males

14683

M45-49

14683

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

25959

Males

14782

M45-49

14782

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25840

Males

14725

M45-49

14725

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

26256

Males

14940

M45-49

14940

Passing Analysis

Category:
Athletes Passed
439
Passed By
887
Net Change
-448
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25314
5K → 10K37368-331#25314#25645
10K → 15K53169-116#25645#25761
15K → 20K6195-34#25761#25795
20K → Half1318-5#25795#25800
Half → 25K6037+23#25800#25777
25K → 30K8124+57#25777#25720
30K → 20M3917+22#25720#25698
20M → 21M335+28#25698#25670
21M → 35K1713+4#25670#25666
35K → 23M2419+5#25666#25661
23M → 24M935-26#25661#25687
24M → 40K622-16#25687#25703
40K → 25.2M314-11#25703#25714
25.2M → Finish351-48#25714#25762
TOTALS439887-448
📊

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