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BOSTON MARATHON 2023

David Simão

Bib: 1333•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
7:55/mi
24:36
↑ 97↓ 3451.5%
10K· 6.21 mi
8:20/mi
50:30
↑ 79↓ 1380.4%
15K· 9.32 mi
9:50/mi
1:21:02
↑ 67↓ 78
20K· 12.43 mi
10:27/mi
1:53:30
↑ 106↓ 860.1%
Half· 13.11 mi
10:04/mi
2:00:22
↑ 19↓ 370.5%
25K· 15.53 mi
10:48/mi
2:26:34
↑ 66↓ 880.2%
30K· 18.64 mi
12:34/mi
3:05:37
↑ 181↓ 1480.2%
20M
13:35/mi
3:24:04
↑ 64↓ 500.2%
21M
15:50/mi
3:39:54
↑ 106↓ 241.6%
35K· 21.75 mi
13:22/mi
3:49:54
↑ 17↓ 861.7%
23M
12:44/mi
4:05:51
↑ 23↓ 630.6%
24M
12:09/mi
4:18:00
↓ 821.3%
40K· 24.85 mi
13:59/mi
4:29:57
↓ 200.3%
25.2M
14:36/mi
4:34:59
↑ 13↓ 160.2%
Finish· 26.22 mi
12:00/mi
4:47:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:22
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:46:51
Pace12:44 /mi
📊Positive Split: 38.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5024:367:5524:36
7:55
-
10K
6.21 mi10:50:4450:308:0825:54
8:20
+0:25
15K
9.32 mi11:21:161:21:028:4230:32
9:50
+1:30
20K
12.43 mi11:53:441:53:309:0832:28
10:27
+0:37
Half
13.11 mi12:00:362:00:229:116:52
10:04
-0:23
25K
15.53 mi12:26:482:26:349:2626:12
10:48
+0:44
30K
18.64 mi13:05:513:05:379:5739:03
12:34
+1:46
20M
20.00 mi13:24:183:24:0410:1218:27
13:35
+1:01
21M
21.00 mi13:40:083:39:5410:2815:50
15:50
+2:15
35K
21.75 mi13:50:083:49:5410:3410:00
13:22
-2:28
23M
23.00 mi14:06:054:05:5110:4115:57
12:44
-0:38
24M
24.00 mi14:18:144:18:0010:4512:09
12:09
-0:35
40K
24.85 mi14:30:114:29:5710:5211:57
13:59
+1:50
25.2M
25.20 mi14:35:134:34:5910:555:02
14:36
+0:37
Finish
26.22 mi14:47:274:47:1310:5812:14
12:00
-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

7:55 /mi

Average Pace

10:58 /mi

Slowest Pace

15:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:34

51% of race

Time at Steady Pace

1:19:23

28% of race

Time at Slower Pace

1:01:16

21% of race

Average Pace: 10:57 /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 mi10:24:5024:367:5524:36
7:55
#13398
10K
6.21 mi10:50:4450:308:0825:54
8:20
#15293
15K
9.32 mi11:21:161:21:028:4230:32
9:50
#19013
20K
12.43 mi11:53:441:53:309:0832:28
10:27
#20924
Half
13.11 mi12:00:362:00:229:116:52
10:04
#21123
25K
15.53 mi12:26:482:26:349:2626:12
10:48
#21683
30K
18.64 mi13:05:513:05:379:5739:03
12:34
#22715
20M
20.00 mi13:24:183:24:0410:1218:27
13:35
#23093
21M
21.00 mi13:40:083:39:5410:2815:50
15:50
#23433
35K
21.75 mi13:50:083:49:5410:3410:00
13:22
#23581
23M
23.00 mi14:06:054:05:5110:4115:57
12:44
#23713
24M
24.00 mi14:18:144:18:0010:4512:09
12:09
#23776
40K
24.85 mi14:30:114:29:5710:5211:57
13:59
#23898
25.2M
25.20 mi14:35:134:34:5910:555:02
14:36
#23943
Finish
26.22 mi14:47:274:47:1310:5812:14
12:00
#24006
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi133989718971823120(Top 87%)13687(Top 90%)13687(Top 667%)
10K6.21 mi3.10 mi15293-189510443-72510443-72517158(Top 64%)11172(Top 74%)11172(Top 544%)
15K9.32 mi3.11 mi19013-372011853-141011853-141023120(Top 87%)13687(Top 90%)13687(Top 667%)
20K12.43 mi3.11 mi20924-191112673-82012673-82023752(Top 89%)13954(Top 92%)13954(Top 680%)
Half13.11 mi0.68 mi21123-19912769-9612769-9623401(Top 88%)13806(Top 91%)13806(Top 673%)
25K15.53 mi2.42 mi21683-56013018-24913018-24923678(Top 89%)13882(Top 91%)13882(Top 677%)
30K18.64 mi3.11 mi22715-103213454-43613454-43625061(Top 94%)14438(Top 95%)14438(Top 704%)
20M20.00 mi1.36 mi23093-37813626-17213626-17225584(Top 96%)14660(Top 97%)14660(Top 714%)
21M21.00 mi1.00 mi23433-34013781-15513781-15526160(Top 98%)14933(Top 98%)14933(Top 728%)
35K21.75 mi0.75 mi23581-14813846-6513846-6525795(Top 97%)14730(Top 97%)14730(Top 718%)
23M23.00 mi1.25 mi23713-13213899-5313899-5324834(Top 93%)14260(Top 94%)14260(Top 695%)
24M24.00 mi1.00 mi23776-6313918-1913918-1924699(Top 93%)14147(Top 93%)14147(Top 689%)
40K24.85 mi0.85 mi23898-12213959-4113959-4125673(Top 96%)14639(Top 96%)14639(Top 713%)
25.2M25.20 mi0.35 mi23943-4513978-1913978-1925450(Top 96%)14521(Top 96%)14521(Top 708%)
Finish26.22 mi1.02 mi24006-6314004-2614004-2625229(Top 95%)14421(Top 95%)14421(Top 703%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23120

Males

13687

M50-54

13687

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

17158

Males

11172

M50-54

11172

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23120

Males

13687

M50-54

13687

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23752

Males

13954

M50-54

13954

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23401

Males

13806

M50-54

13806

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

23678

Males

13882

M50-54

13882

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

25061

Males

14438

M50-54

14438

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25584

Males

14660

M50-54

14660

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

26160

Males

14933

M50-54

14933

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

25795

Males

14730

M50-54

14730

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

24834

Males

14260

M50-54

14260

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

24699

Males

14147

M50-54

14147

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25673

Males

14639

M50-54

14639

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25450

Males

14521

M50-54

14521

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25229

Males

14421

M50-54

14421

Passing Analysis

Category:
Athletes Passed
112
Passed By
10720
Net Change
-10608
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13398
5K → 10K131908-1895#13398#15293
10K → 15K13721-3720#15293#19013
15K → 20K71918-1911#19013#20924
20K → Half3202-199#20924#21123
Half → 25K15575-560#21123#21683
25K → 30K111043-1032#21683#22715
30K → 20M15393-378#22715#23093
20M → 21M2342-340#23093#23433
21M → 35K4152-148#23433#23581
35K → 23M11143-132#23581#23713
23M → 24M1275-63#23713#23776
24M → 40K7129-122#23776#23898
40K → 25.2M247-45#23898#23943
25.2M → Finish972-63#23943#24006
TOTALS11210720-10608
📊

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