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BOSTON MARATHON 2023

Simen Ng

Bib: 32009•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:16
Rank: #20852
Start → 5K
28:16 | 9:06/mi
10K· 6.21 mi
54:53
Rank: #19837 (+1015)
5K → 10K
26:37 | 8:34/mi
15K· 9.32 mi
1:21:12
Rank: #19106 (+731)
10K → 15K
26:19 | 8:28/mi
20K· 12.43 mi
1:48:12
Rank: #18828 (+278)
15K → 20K
27:00 | 8:41/mi
Half· 13.11 mi
1:54:06
Rank: #18808 (+20)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:15:21
Rank: #18647 (+161)
Half → 25K
21:15 | 8:46/mi
30K· 18.64 mi
2:43:29
Rank: #18402 (+245)
25K → 30K
28:08 | 9:03/mi
20M
2:56:08
Rank: #18370 (+32)
30K → 20M
12:39 | 9:19/mi
21M
3:06:01
Rank: #18322 (+48)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
3:12:27
Rank: #18221 (+101)
21M → 35K
6:26 | 8:36/mi
23M
3:23:43
Rank: #18083 (+138)
35K → 23M
11:16 | 9:00/mi
24M
3:32:37
Rank: #18023 (+60)
23M → 24M
8:54 | 8:54/mi
40K· 24.85 mi
3:40:24
Rank: #17993 (+30)
24M → 40K
7:47 | 9:06/mi
25.2M
3:43:41
Rank: #17943 (+50)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:52:23
Rank: #17844 (+99)
25.2M → Finish
8:42 | 8:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:06
Pace8:42 /mi
2nd Half
Distance13.11 mi
Time1:58:17
Pace9:01 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5728:169:0628:16
9:06
-
10K
6.21 mi12:17:3454:538:5026:37
8:34
-0:32
15K
9.32 mi12:43:531:21:128:4326:19
8:28
-0:06
20K
12.43 mi13:10:531:48:128:4227:00
8:41
+0:13
Half
13.11 mi13:16:471:54:068:425:54
8:39
-0:02
25K
15.53 mi13:38:022:15:218:4321:15
8:46
+0:07
30K
18.64 mi14:06:102:43:298:4628:08
9:03
+0:17
20M
20.00 mi14:18:492:56:088:4812:39
9:19
+0:16
21M
21.00 mi14:28:423:06:018:519:53
9:53
+0:34
35K
21.75 mi14:35:083:12:278:516:26
8:36
-1:17
23M
23.00 mi14:46:243:23:438:5111:16
9:00
+0:24
24M
24.00 mi14:55:183:32:378:528:54
8:54
-0:06
40K
24.85 mi15:03:053:40:248:527:47
9:06
+0:12
25.2M
25.20 mi15:06:223:43:418:533:17
9:31
+0:25
Finish
26.22 mi15:15:043:52:238:528:42
8:32
-0:59

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

8:28 /mi

Average Pace

8:52 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:26:34

89% of race

Time at Steady Pace

25:49

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:52 /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 mi11:50:5728:169:0628:16
9:06
#20852
10K
6.21 mi12:17:3454:538:5026:37
8:34
#19837
15K
9.32 mi12:43:531:21:128:4326:19
8:28
#19106
20K
12.43 mi13:10:531:48:128:4227:00
8:41
#18828
Half
13.11 mi13:16:471:54:068:425:54
8:39
#18808
25K
15.53 mi13:38:022:15:218:4321:15
8:46
#18647
30K
18.64 mi14:06:102:43:298:4628:08
9:03
#18402
20M
20.00 mi14:18:492:56:088:4812:39
9:19
#18370
21M
21.00 mi14:28:423:06:018:519:53
9:53
#18322
35K
21.75 mi14:35:083:12:278:516:26
8:36
#18221
23M
23.00 mi14:46:243:23:438:5111:16
9:00
#18083
24M
24.00 mi14:55:183:32:378:528:54
8:54
#18023
40K
24.85 mi15:03:053:40:248:527:47
9:06
#17993
25.2M
25.20 mi15:06:223:43:418:533:17
9:31
#17943
Finish
26.22 mi15:15:043:52:238:528:42
8:32
#17844
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi20852125321253217598(Top 66%)11307(Top 75%)11307(Top 505%)
10K6.21 mi3.10 mi19837+101512144+38812144+38818653(Top 70%)11764(Top 78%)11764(Top 525%)
15K9.32 mi3.11 mi19106+73111889+25511889+25517598(Top 66%)11307(Top 75%)11307(Top 505%)
20K12.43 mi3.11 mi18828+27811791+9811791+9818050(Top 68%)11490(Top 76%)11490(Top 513%)
Half13.11 mi0.68 mi18808+2011779+1211779+1218564(Top 70%)11725(Top 77%)11725(Top 523%)
25K15.53 mi2.42 mi18647+16111702+7711702+7717740(Top 67%)11296(Top 74%)11296(Top 504%)
30K18.64 mi3.11 mi18402+24511574+12811574+12817460(Top 66%)11111(Top 73%)11111(Top 496%)
20M20.00 mi1.36 mi18370+3211553+2111553+2118048(Top 68%)11260(Top 74%)11260(Top 502%)
21M21.00 mi1.00 mi18322+4811517+3611517+3617559(Top 66%)11033(Top 73%)11033(Top 492%)
35K21.75 mi0.75 mi18221+10111463+5411463+5415843(Top 60%)10234(Top 67%)10234(Top 457%)
23M23.00 mi1.25 mi18083+13811399+6411399+6416064(Top 60%)10269(Top 68%)10269(Top 458%)
24M24.00 mi1.00 mi18023+6011360+3911360+3916757(Top 63%)10512(Top 69%)10512(Top 469%)
40K24.85 mi0.85 mi17993+3011337+2311337+2316634(Top 62%)10417(Top 69%)10417(Top 465%)
25.2M25.20 mi0.35 mi17943+5011317+2011317+2015260(Top 57%)9801(Top 65%)9801(Top 437%)
Finish26.22 mi1.02 mi17844+9911265+5211265+5215618(Top 59%)10004(Top 66%)10004(Top 446%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

17598

Males

11307

M40-44

11307

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

18653

Males

11764

M40-44

11764

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

17598

Males

11307

M40-44

11307

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

18050

Males

11490

M40-44

11490

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

18564

Males

11725

M40-44

11725

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

17740

Males

11296

M40-44

11296

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

17460

Males

11111

M40-44

11111

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18048

Males

11260

M40-44

11260

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

17559

Males

11033

M40-44

11033

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

15843

Males

10234

M40-44

10234

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

16064

Males

10269

M40-44

10269

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16757

Males

10512

M40-44

10512

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16634

Males

10417

M40-44

10417

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15260

Males

9801

M40-44

9801

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2stories
+22ft-21ft

Overall

15618

Males

10004

M40-44

10004

Passing Analysis

Category:
Athletes Passed
3481
Passed By
473
Net Change
+3008
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20852
5K → 10K107257+1015#20852#19837
10K → 15K74817+731#19837#19106
15K → 20K32648+278#19106#18828
20K → Half3616+20#18828#18808
Half → 25K20645+161#18808#18647
25K → 30K29752+245#18647#18402
30K → 20M10472+32#18402#18370
20M → 21M11264+48#18370#18322
21M → 35K1065+101#18322#18221
35K → 23M15113+138#18221#18083
23M → 24M9131+60#18083#18023
24M → 40K6232+30#18023#17993
40K → 25.2M522+50#17993#17943
25.2M → Finish11819+99#17943#17844
TOTALS3481473+3008
📊

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