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BOSTON MARATHON 2023

Ethan Ngo

Bib: 30011•M

FL

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

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
11:41/mi
36:19
↑ 97↓ 3451.5%
10K· 6.21 mi
11:56/mi
1:13:22
↑ 79↓ 1380.4%
15K· 9.32 mi
12:54/mi
1:53:28
↑ 67↓ 78
20K· 12.43 mi
12:58/mi
2:33:44
↑ 106↓ 860.1%
Half· 13.11 mi
13:35/mi
2:43:00
↑ 19↓ 370.5%
25K· 15.53 mi
14:25/mi
3:17:57
↑ 66↓ 880.2%
30K· 18.64 mi
14:05/mi
4:01:43
↑ 181↓ 1480.2%
20M
14:03/mi
4:20:49
↑ 64↓ 500.2%
21M
16:18/mi
4:37:07
↑ 106↓ 241.6%
35K· 21.75 mi
13:30/mi
4:47:13
↑ 17↓ 861.7%
23M
14:19/mi
5:05:08
↑ 23↓ 630.6%
24M
13:45/mi
5:18:53
↓ 821.3%
40K· 24.85 mi
13:40/mi
5:30:34
↓ 200.3%
25.2M
14:44/mi
5:35:39
↑ 13↓ 160.2%
Finish· 26.22 mi
12:44/mi
5:48:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:43:00
Pace12:26 /mi
2nd Half
Distance13.11 mi
Time3:05:38
Pace14:10 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:3336:1911:4136:19
11:41
-
10K
6.21 mi12:32:361:13:2211:4837:03
11:56
+0:15
15K
9.32 mi13:12:421:53:2812:1040:06
12:54
+0:58
20K
12.43 mi13:52:582:33:4412:2240:16
12:58
+0:04
Half
13.11 mi14:02:142:43:0012:269:16
13:35
+0:37
25K
15.53 mi14:37:113:17:5712:4534:57
14:25
+0:50
30K
18.64 mi15:20:574:01:4312:5843:46
14:05
-0:20
20M
20.00 mi15:40:034:20:4913:0219:06
14:03
-0:02
21M
21.00 mi15:56:214:37:0713:1216:18
16:18
+2:15
35K
21.75 mi16:06:274:47:1313:1210:06
13:30
-2:48
23M
23.00 mi16:24:225:05:0813:1617:55
14:19
+0:49
24M
24.00 mi16:38:075:18:5313:1713:45
13:45
-0:34
40K
24.85 mi16:49:485:30:3413:1811:41
13:40
-0:05
25.2M
25.20 mi16:54:535:35:3913:195:05
14:44
+1:04
Finish
26.22 mi17:07:525:48:3813:1812:59
12:44
-2:00

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

11:41 /mi

Average Pace

13:18 /mi

Slowest Pace

16:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:43

48% of race

Time at Steady Pace

1:47:40

31% of race

Time at Slower Pace

1:14:15

21% of race

Average Pace: 13:18 /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 mi11:55:3336:1911:4136:19
11:41
#26320
10K
6.21 mi12:32:361:13:2211:4837:03
11:56
#26298
15K
9.32 mi13:12:421:53:2812:1040:06
12:54
#26381
20K
12.43 mi13:52:582:33:4412:2240:16
12:58
#26350
Half
13.11 mi14:02:142:43:0012:269:16
13:35
#26366
25K
15.53 mi14:37:113:17:5712:4534:57
14:25
#26419
30K
18.64 mi15:20:574:01:4312:5843:46
14:05
#26378
20M
20.00 mi15:40:034:20:4913:0219:06
14:03
#26354
21M
21.00 mi15:56:214:37:0713:1216:18
16:18
#26378
35K
21.75 mi16:06:274:47:1313:1210:06
13:30
#26365
23M
23.00 mi16:24:225:05:0813:1617:55
14:19
#26361
24M
24.00 mi16:38:075:18:5313:1713:45
13:45
#26357
40K
24.85 mi16:49:485:30:3413:1811:41
13:40
#26336
25.2M
25.20 mi16:54:535:35:3913:195:05
14:44
#26328
Finish
26.22 mi17:07:525:48:3813:1812:59
12:44
#26326
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi26320150551505526457(Top 99%)15101(Top 100%)15101(Top 674%)
10K6.21 mi3.10 mi26298+2215046+915046+926240(Top 99%)15024(Top 99%)15024(Top 670%)
15K9.32 mi3.11 mi26381-8315075-2915075-2926457(Top 99%)15101(Top 100%)15101(Top 674%)
20K12.43 mi3.11 mi26350+3115070+515070+526216(Top 98%)15012(Top 99%)15012(Top 670%)
Half13.11 mi0.68 mi26366-1615077-715077-726475(Top 99%)15101(Top 100%)15101(Top 674%)
25K15.53 mi2.42 mi26419-5315089-1215089-1226459(Top 99%)15101(Top 100%)15101(Top 674%)
30K18.64 mi3.11 mi26378+4115079+1015079+1026071(Top 98%)14914(Top 98%)14914(Top 666%)
20M20.00 mi1.36 mi26354+2415068+1115068+1125856(Top 97%)14788(Top 97%)14788(Top 660%)
21M21.00 mi1.00 mi26378-2415076-815076-826299(Top 99%)15006(Top 99%)15006(Top 670%)
35K21.75 mi0.75 mi26365+1315069+715069+725890(Top 97%)14784(Top 97%)14784(Top 660%)
23M23.00 mi1.25 mi26361+415067+215067+226010(Top 98%)14846(Top 98%)14846(Top 662%)
24M24.00 mi1.00 mi26357+415064+315064+325946(Top 97%)14785(Top 97%)14785(Top 660%)
40K24.85 mi0.85 mi26336+2115052+1215052+1225473(Top 96%)14549(Top 96%)14549(Top 649%)
25.2M25.20 mi0.35 mi26328+815044+815044+825554(Top 96%)14578(Top 96%)14578(Top 651%)
Finish26.22 mi1.02 mi26326+215042+215042+225813(Top 97%)14710(Top 97%)14710(Top 656%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

26457

Males

15101

M40-44

15101

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

26240

Males

15024

M40-44

15024

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

26457

Males

15101

M40-44

15101

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

26216

Males

15012

M40-44

15012

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

26475

Males

15101

M40-44

15101

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

26459

Males

15101

M40-44

15101

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

26071

Males

14914

M40-44

14914

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

25856

Males

14788

M40-44

14788

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

26299

Males

15006

M40-44

15006

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

25890

Males

14784

M40-44

14784

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

26010

Males

14846

M40-44

14846

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25946

Males

14785

M40-44

14785

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25473

Males

14549

M40-44

14549

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25554

Males

14578

M40-44

14578

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

25813

Males

14710

M40-44

14710

Passing Analysis

Category:
Athletes Passed
312
Passed By
318
Net Change
-6
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26320
5K → 10K6240+22#26320#26298
10K → 15K1396-83#26298#26381
15K → 20K5322+31#26381#26350
20K → Half319-16#26350#26366
Half → 25K1265-53#26366#26419
25K → 30K5211+41#26419#26378
30K → 20M295+24#26378#26354
20M → 21M630-24#26354#26378
21M → 35K141+13#26378#26365
35K → 23M1410+4#26365#26361
23M → 24M128+4#26361#26357
24M → 40K232+21#26357#26336
40K → 25.2M91+8#26336#26328
25.2M → Finish108+2#26328#26326
TOTALS312318-6
📊

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