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BOSTON MARATHON 2023

Ethan Simmie

Bib: 31871•M

OR

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
9:52/mi
30:40
↑ 97↓ 3451.5%
10K· 6.21 mi
9:39/mi
1:00:39
↑ 79↓ 1380.4%
15K· 9.32 mi
9:50/mi
1:31:11
↑ 67↓ 78
20K· 12.43 mi
10:03/mi
2:02:24
↑ 106↓ 860.1%
Half· 13.11 mi
10:17/mi
2:09:25
↑ 19↓ 370.5%
25K· 15.53 mi
10:57/mi
2:35:59
↑ 66↓ 880.2%
30K· 18.64 mi
11:37/mi
3:12:03
↑ 181↓ 1480.2%
20M
12:42/mi
3:29:18
↑ 64↓ 500.2%
21M
13:02/mi
3:42:20
↑ 106↓ 241.6%
35K· 21.75 mi
10:59/mi
3:50:33
↑ 17↓ 861.7%
23M
12:44/mi
4:06:29
↑ 23↓ 630.6%
24M
12:14/mi
4:18:43
↓ 821.3%
40K· 24.85 mi
11:38/mi
4:28:40
↓ 200.3%
25.2M
13:23/mi
4:33:17
↑ 13↓ 160.2%
Finish· 26.22 mi
10:47/mi
4:44:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:25
Pace9:52 /mi
2nd Half
Distance13.11 mi
Time2:34:51
Pace11:49 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2330:409:5230:40
9:52
-
10K
6.21 mi12:21:221:00:399:4629:59
9:39
-0:13
15K
9.32 mi12:51:541:31:119:4730:32
9:50
+0:11
20K
12.43 mi13:23:072:02:249:5131:13
10:03
+0:13
Half
13.11 mi13:30:082:09:259:527:01
10:17
+0:14
25K
15.53 mi13:56:422:35:5910:0226:34
10:57
+0:40
30K
18.64 mi14:32:463:12:0310:1836:04
11:37
+0:40
20M
20.00 mi14:50:013:29:1810:2817:15
12:42
+1:05
21M
21.00 mi15:03:033:42:2010:3513:02
13:02
+0:20
35K
21.75 mi15:11:163:50:3310:368:13
10:59
-2:03
23M
23.00 mi15:27:124:06:2910:4315:56
12:44
+1:45
24M
24.00 mi15:39:264:18:4310:4712:14
12:14
-0:30
40K
24.85 mi15:49:234:28:4010:499:57
11:38
-0:36
25.2M
25.20 mi15:54:004:33:1710:514:37
13:23
+1:45
Finish
26.22 mi16:04:594:44:1610:5110:59
10:47
-2:36

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

9:39 /mi

Average Pace

10:51 /mi

Slowest Pace

13:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:25

46% of race

Time at Steady Pace

45:46

16% of race

Time at Slower Pace

1:49:05

38% of race

Average Pace: 10:50 /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 mi11:51:2330:409:5230:40
9:52
#23118
10K
6.21 mi12:21:221:00:399:4629:59
9:39
#23070
15K
9.32 mi12:51:541:31:119:4730:32
9:50
#23103
20K
12.43 mi13:23:072:02:249:5131:13
10:03
#23064
Half
13.11 mi13:30:082:09:259:527:01
10:17
#23105
25K
15.53 mi13:56:422:35:5910:0226:34
10:57
#23296
30K
18.64 mi14:32:463:12:0310:1836:04
11:37
#23453
20M
20.00 mi14:50:013:29:1810:2817:15
12:42
#23580
21M
21.00 mi15:03:033:42:2010:3513:02
13:02
#23638
35K
21.75 mi15:11:163:50:3310:368:13
10:59
#23626
23M
23.00 mi15:27:124:06:2910:4315:56
12:44
#23760
24M
24.00 mi15:39:264:18:4310:4712:14
12:14
#23821
40K
24.85 mi15:49:234:28:4010:499:57
11:38
#23816
25.2M
25.20 mi15:54:004:33:1710:514:37
13:23
#23833
Finish
26.22 mi16:04:594:44:1610:5110:59
10:47
#23830
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23118136391363923119(Top 87%)13686(Top 90%)13686(Top 259%)
10K6.21 mi3.10 mi23070+4813649-1013649-1022931(Top 86%)13609(Top 90%)13609(Top 258%)
15K9.32 mi3.11 mi23103-3313678-2913678-2923119(Top 87%)13686(Top 90%)13686(Top 259%)
20K12.43 mi3.11 mi23064+3913662+1613662+1623016(Top 86%)13640(Top 90%)13640(Top 258%)
Half13.11 mi0.68 mi23105-4113676-1413676-1423814(Top 89%)13981(Top 92%)13981(Top 265%)
25K15.53 mi2.42 mi23296-19113765-8913765-8923895(Top 90%)13973(Top 92%)13973(Top 264%)
30K18.64 mi3.11 mi23453-15713815-5013815-5024014(Top 90%)13969(Top 92%)13969(Top 264%)
20M20.00 mi1.36 mi23580-12713858-4313858-4324909(Top 94%)14332(Top 94%)14332(Top 271%)
21M21.00 mi1.00 mi23638-5813878-2013878-2024115(Top 91%)13941(Top 92%)13941(Top 264%)
35K21.75 mi0.75 mi23626+1213869+913869+923277(Top 87%)13511(Top 89%)13511(Top 256%)
23M23.00 mi1.25 mi23760-13413917-4813917-4824822(Top 93%)14255(Top 94%)14255(Top 270%)
24M24.00 mi1.00 mi23821-6113937-2013937-2024779(Top 93%)14182(Top 93%)14182(Top 268%)
40K24.85 mi0.85 mi23816+513932+513932+523420(Top 88%)13506(Top 89%)13506(Top 256%)
25.2M25.20 mi0.35 mi23833-1713933-113933-124399(Top 92%)13998(Top 92%)13998(Top 265%)
Finish26.22 mi1.02 mi23830+313925+813925+823565(Top 89%)13605(Top 90%)13605(Top 257%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23119

Males

13686

M18-39

13686

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22931

Males

13609

M18-39

13609

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23119

Males

13686

M18-39

13686

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

23016

Males

13640

M18-39

13640

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23814

Males

13981

M18-39

13981

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

23895

Males

13973

M18-39

13973

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

24014

Males

13969

M18-39

13969

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

24909

Males

14332

M18-39

14332

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24115

Males

13941

M18-39

13941

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23277

Males

13511

M18-39

13511

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

24822

Males

14255

M18-39

14255

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

24779

Males

14182

M18-39

14182

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23420

Males

13506

M18-39

13506

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24399

Males

13998

M18-39

13998

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

23565

Males

13605

M18-39

13605

Passing Analysis

Category:
Athletes Passed
794
Passed By
1506
Net Change
-712
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23118
5K → 10K243195+48#23118#23070
10K → 15K125158-33#23070#23103
15K → 20K152113+39#23103#23064
20K → Half1152-41#23064#23105
Half → 25K40231-191#23105#23296
25K → 30K65222-157#23296#23453
30K → 20M22149-127#23453#23580
20M → 21M1876-58#23580#23638
21M → 35K2917+12#23638#23626
35K → 23M14148-134#23626#23760
23M → 24M1677-61#23760#23821
24M → 40K2621+5#23821#23816
40K → 25.2M926-17#23816#23833
25.2M → Finish2421+3#23833#23830
TOTALS7941506-712
📊

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