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BOSTON MARATHON 2023

Michael Simms

Bib: 6968•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 19%
Gender (Male)
#0 / 15176
Top 30%
Masters (Masters Men)
#0 / 9891
Top 16%
Division (M45-49)
#0 / 2252
Top 19%
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
6:45/mi
20:57
↑ 97↓ 3451.5%
10K· 6.21 mi
6:47/mi
42:03
↑ 79↓ 1380.4%
15K· 9.32 mi
6:51/mi
1:03:19
↑ 67↓ 78
20K· 12.43 mi
6:52/mi
1:24:40
↑ 106↓ 860.1%
Half· 13.11 mi
6:50/mi
1:29:20
↑ 19↓ 370.5%
25K· 15.53 mi
6:54/mi
1:46:03
↑ 66↓ 880.2%
30K· 18.64 mi
7:11/mi
2:08:22
↑ 181↓ 1480.2%
20M
7:19/mi
2:18:19
↑ 64↓ 500.2%
21M
7:35/mi
2:25:54
↑ 106↓ 241.6%
35K· 21.75 mi
7:02/mi
2:31:10
↑ 17↓ 861.7%
23M
7:15/mi
2:40:15
↑ 23↓ 630.6%
24M
7:07/mi
2:47:22
↓ 821.3%
40K· 24.85 mi
7:12/mi
2:53:31
↓ 200.3%
25.2M
7:44/mi
2:56:11
↑ 13↓ 160.2%
Finish· 26.22 mi
7:06/mi
3:03:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:20
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:34:05
Pace7:11 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1420:576:4520:57
6:45
-
10K
6.21 mi10:45:2042:036:4621:06
6:47
+0:02
15K
9.32 mi11:06:361:03:196:4821:16
6:51
+0:04
20K
12.43 mi11:27:571:24:406:4921:21
6:52
+0:01
Half
13.11 mi11:32:371:29:206:494:40
6:50
-0:02
25K
15.53 mi11:49:201:46:036:5016:43
6:54
+0:04
30K
18.64 mi12:11:392:08:226:5322:19
7:11
+0:17
20M
20.00 mi12:21:362:18:196:559:57
7:19
+0:08
21M
21.00 mi12:29:112:25:546:577:35
7:35
+0:16
35K
21.75 mi12:34:272:31:106:575:16
7:02
-0:33
23M
23.00 mi12:43:322:40:156:589:05
7:15
+0:13
24M
24.00 mi12:50:392:47:226:587:07
7:07
-0:08
40K
24.85 mi12:56:482:53:316:596:09
7:12
+0:05
25.2M
25.20 mi12:59:282:56:116:592:40
7:44
+0:32
Finish
26.22 mi13:06:423:03:257:007:14
7:06
-0:38

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

6:45 /mi

Average Pace

7:00 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:10

94% of race

Time at Steady Pace

10:15

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:00 /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 mi10:24:1420:576:4520:57
6:45
#4069
10K
6.21 mi10:45:2042:036:4621:06
6:47
#4669
15K
9.32 mi11:06:361:03:196:4821:16
6:51
#4937
20K
12.43 mi11:27:571:24:406:4921:21
6:52
#4955
Half
13.11 mi11:32:371:29:206:494:40
6:50
#4987
25K
15.53 mi11:49:201:46:036:5016:43
6:54
#4959
30K
18.64 mi12:11:392:08:226:5322:19
7:11
#5052
20M
20.00 mi12:21:362:18:196:559:57
7:19
#5111
21M
21.00 mi12:29:112:25:546:577:35
7:35
#5074
35K
21.75 mi12:34:272:31:106:575:16
7:02
#5076
23M
23.00 mi12:43:322:40:156:589:05
7:15
#5036
24M
24.00 mi12:50:392:47:226:587:07
7:07
#5005
40K
24.85 mi12:56:482:53:316:596:09
7:12
#4963
25.2M
25.20 mi12:59:282:56:116:592:40
7:44
#4950
Finish
26.22 mi13:06:423:03:257:007:14
7:06
#4933
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4069381638165519(Top 21%)5082(Top 33%)5082(Top 226%)
10K6.21 mi3.10 mi4669-6004354-5384354-5385208(Top 20%)4817(Top 32%)4817(Top 214%)
15K9.32 mi3.11 mi4937-2684589-2354589-2355519(Top 21%)5082(Top 33%)5082(Top 226%)
20K12.43 mi3.11 mi4955-184613-244613-245124(Top 19%)4739(Top 31%)4739(Top 210%)
Half13.11 mi0.68 mi4987-324636-234636-235555(Top 21%)5115(Top 34%)5115(Top 227%)
25K15.53 mi2.42 mi4959+284610+264610+264922(Top 18%)4555(Top 30%)4555(Top 202%)
30K18.64 mi3.11 mi5052-934686-764686-765385(Top 20%)4907(Top 32%)4907(Top 218%)
20M20.00 mi1.36 mi5111-594734-484734-485731(Top 22%)5091(Top 34%)5091(Top 226%)
21M21.00 mi1.00 mi5074+374694+404694+404990(Top 19%)4468(Top 29%)4468(Top 198%)
35K21.75 mi0.75 mi5076-24685+94685+95529(Top 21%)4892(Top 32%)4892(Top 217%)
23M23.00 mi1.25 mi5036+404641+444641+445057(Top 19%)4506(Top 30%)4506(Top 200%)
24M24.00 mi1.00 mi5005+314607+344607+345265(Top 20%)4610(Top 30%)4610(Top 205%)
40K24.85 mi0.85 mi4963+424572+354572+354834(Top 18%)4234(Top 28%)4234(Top 188%)
25.2M25.20 mi0.35 mi4950+134557+154557+154988(Top 19%)4265(Top 28%)4265(Top 189%)
Finish26.22 mi1.02 mi4933+174537+204537+205791(Top 22%)4783(Top 32%)4783(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21story building
+97ft-345ft

Overall

5519

Males

5082

M45-49

5082

5K→10K

3.1 - 6.2 mi

Top 20%
×5story building
+79ft-138ft

Overall

5208

Males

4817

M45-49

4817

10K→15K

6.2 - 9.3 mi

Top 21%
×3story building
+67ft-78ft

Overall

5519

Males

5082

M45-49

5082

15K→20K

9.3 - 12.4 mi

Top 19%
×5story building
+106ft-86ft

Overall

5124

Males

4739

M45-49

4739

20K→Half

12.4 - 13.1 mi

Top 21%
×2story building
+19ft-37ft

Overall

5555

Males

5115

M45-49

5115

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

4922

Males

4555

M45-49

4555

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5385

Males

4907

M45-49

4907

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

5731

Males

5091

M45-49

5091

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

4990

Males

4468

M45-49

4468

21M→35K

21.0 - 21.8 mi

Top 21%
×7story building
+17ft-86ft

Overall

5529

Males

4892

M45-49

4892

35K→23M

21.8 - 23.0 mi

Top 19%
×5story building
+23ft-63ft

Overall

5057

Males

4506

M45-49

4506

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5265

Males

4610

M45-49

4610

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4834

Males

4234

M45-49

4234

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

4988

Males

4265

M45-49

4265

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

5791

Males

4783

M45-49

4783

Passing Analysis

Category:
Athletes Passed
869
Passed By
1733
Net Change
-864
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4069
5K → 10K52652-600#4069#4669
10K → 15K45313-268#4669#4937
15K → 20K99117-18#4937#4955
20K → Half840-32#4955#4987
Half → 25K11486+28#4987#4959
25K → 30K108201-93#4959#5052
30K → 20M54113-59#5052#5111
20M → 21M7538+37#5111#5074
21M → 35K3436-2#5074#5076
35K → 23M8444+40#5076#5036
23M → 24M6130+31#5036#5005
24M → 40K6119+42#5005#4963
40K → 25.2M2411+13#4963#4950
25.2M → Finish5033+17#4950#4933
TOTALS8691733-864
📊

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