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BOSTON MARATHON 2023

Alexander Simon

Bib: 1611•M

NY

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

Start
0:00:00
Race begins
5K· 3.11 mi
25:18
Rank: #15022
Start → 5K
25:18 | 8:09/mi
10K· 6.21 mi
50:22
Rank: #15159 (-137)
5K → 10K
25:04 | 8:04/mi
15K· 9.32 mi
1:15:48
Rank: #15361 (-202)
10K → 15K
25:26 | 8:11/mi
20K· 12.43 mi
1:41:58
Rank: #15608 (-247)
15K → 20K
26:10 | 8:25/mi
Half· 13.11 mi
1:47:45
Rank: #15705 (-97)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:09:06
Rank: #16104 (-399)
Half → 25K
21:21 | 8:48/mi
30K· 18.64 mi
2:37:43
Rank: #16529 (-425)
25K → 30K
28:37 | 9:13/mi
20M
2:50:21
Rank: #16649 (-120)
30K → 20M
12:38 | 9:18/mi
21M
3:00:24
Rank: #16746 (-97)
20M → 21M
10:03 | 10:03/mi
35K· 21.75 mi
3:07:04
Rank: #16757 (-11)
21M → 35K
6:40 | 8:55/mi
23M
3:18:50
Rank: #16844 (-87)
35K → 23M
11:46 | 9:24/mi
24M
3:28:40
Rank: #17057 (-213)
23M → 24M
9:50 | 9:50/mi
40K· 24.85 mi
3:37:29
Rank: #17295 (-238)
24M → 40K
8:49 | 10:19/mi
25.2M
3:41:08
Rank: #17353 (-58)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
3:51:23
Rank: #17647 (-294)
25.2M → Finish
10:15 | 10:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:45
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:03:38
Pace9:26 /mi
📊Positive Split: 14.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5625:188:0925:18
8:09
-
10K
6.21 mi11:41:0050:228:0625:04
8:04
-0:05
15K
9.32 mi12:06:261:15:488:0825:26
8:11
+0:07
20K
12.43 mi12:32:361:41:588:1226:10
8:25
+0:14
Half
13.11 mi12:38:231:47:458:135:47
8:29
+0:04
25K
15.53 mi12:59:442:09:068:1921:21
8:48
+0:19
30K
18.64 mi13:28:212:37:438:2828:37
9:13
+0:25
20M
20.00 mi13:40:592:50:218:3112:38
9:18
+0:05
21M
21.00 mi13:51:023:00:248:3510:03
10:03
+0:45
35K
21.75 mi13:57:423:07:048:366:40
8:55
-1:08
23M
23.00 mi14:09:283:18:508:3911:46
9:24
+0:29
24M
24.00 mi14:19:183:28:408:429:50
9:50
+0:26
40K
24.85 mi14:28:073:37:298:458:49
10:19
+0:29
25.2M
25.20 mi14:31:463:41:088:473:39
10:35
+0:16
Finish
26.22 mi14:42:013:51:238:5010:15
10:04
-0:31

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

8:04 /mi

Average Pace

8:50 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:06

56% of race

Time at Steady Pace

59:41

26% of race

Time at Slower Pace

42:36

18% of race

Average Pace: 8:49 /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 mi11:15:5625:188:0925:18
8:09
#15022
10K
6.21 mi11:41:0050:228:0625:04
8:04
#15159
15K
9.32 mi12:06:261:15:488:0825:26
8:11
#15361
20K
12.43 mi12:32:361:41:588:1226:10
8:25
#15608
Half
13.11 mi12:38:231:47:458:135:47
8:29
#15705
25K
15.53 mi12:59:442:09:068:1921:21
8:48
#16104
30K
18.64 mi13:28:212:37:438:2828:37
9:13
#16529
20M
20.00 mi13:40:592:50:218:3112:38
9:18
#16649
21M
21.00 mi13:51:023:00:248:3510:03
10:03
#16746
35K
21.75 mi13:57:423:07:048:366:40
8:55
#16757
23M
23.00 mi14:09:283:18:508:3911:46
9:24
#16844
24M
24.00 mi14:19:183:28:408:429:50
9:50
#17057
40K
24.85 mi14:28:073:37:298:458:49
10:19
#17295
25.2M
25.20 mi14:31:463:41:088:473:39
10:35
#17353
Finish
26.22 mi14:42:013:51:238:5010:15
10:04
#17647
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi15022103511035115756(Top 59%)10600(Top 70%)10600(Top 201%)
10K6.21 mi3.10 mi15159-13710391-4010391-4015301(Top 57%)10431(Top 69%)10431(Top 197%)
15K9.32 mi3.11 mi15361-20210453-6210453-6215756(Top 59%)10600(Top 70%)10600(Top 201%)
20K12.43 mi3.11 mi15608-24710527-7410527-7416376(Top 62%)10783(Top 71%)10783(Top 204%)
Half13.11 mi0.68 mi15705-9710560-3310560-3317557(Top 66%)11318(Top 75%)11318(Top 214%)
25K15.53 mi2.42 mi16104-39910687-12710687-12717975(Top 68%)11411(Top 75%)11411(Top 216%)
30K18.64 mi3.11 mi16529-42510809-12210809-12218211(Top 68%)11418(Top 75%)11418(Top 216%)
20M20.00 mi1.36 mi16649-12010848-3910848-3917995(Top 68%)11230(Top 74%)11230(Top 212%)
21M21.00 mi1.00 mi16746-9710888-4010888-4018191(Top 68%)11301(Top 74%)11301(Top 214%)
35K21.75 mi0.75 mi16757-1110881+710881+717487(Top 66%)10925(Top 72%)10925(Top 207%)
23M23.00 mi1.25 mi16844-8710897-1610897-1617921(Top 67%)11079(Top 73%)11079(Top 210%)
24M24.00 mi1.00 mi17057-21310962-6510962-6520320(Top 76%)12130(Top 80%)12130(Top 230%)
40K24.85 mi0.85 mi17295-23811049-8711049-8720757(Top 78%)12261(Top 81%)12261(Top 232%)
25.2M25.20 mi0.35 mi17353-5811066-1711066-1719315(Top 73%)11606(Top 76%)11606(Top 220%)
Finish26.22 mi1.02 mi17647-29411183-11711183-11721905(Top 82%)12813(Top 84%)12813(Top 242%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

15756

Males

10600

M18-39

10600

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15301

Males

10431

M18-39

10431

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

15756

Males

10600

M18-39

10600

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

16376

Males

10783

M18-39

10783

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17557

Males

11318

M18-39

11318

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

17975

Males

11411

M18-39

11411

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

18211

Males

11418

M18-39

11418

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

17995

Males

11230

M18-39

11230

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

18191

Males

11301

M18-39

11301

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17487

Males

10925

M18-39

10925

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

17921

Males

11079

M18-39

11079

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20320

Males

12130

M18-39

12130

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20757

Males

12261

M18-39

12261

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19315

Males

11606

M18-39

11606

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

21905

Males

12813

M18-39

12813

Passing Analysis

Category:
Athletes Passed
847
Passed By
3472
Net Change
-2625
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15022
5K → 10K244381-137#15022#15159
10K → 15K104306-202#15159#15361
15K → 20K100347-247#15361#15608
20K → Half11108-97#15608#15705
Half → 25K61460-399#15705#16104
25K → 30K74499-425#16104#16529
30K → 20M46166-120#16529#16649
20M → 21M53150-97#16649#16746
21M → 35K4051-11#16746#16757
35K → 23M52139-87#16757#16844
23M → 24M21234-213#16844#17057
24M → 40K18256-238#17057#17295
40K → 25.2M1573-58#17295#17353
25.2M → Finish8302-294#17353#17647
TOTALS8473472-2625
📊

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