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BOSTON MARATHON 2023

Andy Heim

Bib: 10005•M

KY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Male)
#0 / 15176
Top 50%
Masters (Masters Men)
#0 / 9891
Top 38%
Division (M50-54)
#0 / 2052
Top 36%
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
7:26/mi
23:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
46:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:10:03
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:33:41
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:38:48
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:57:16
↑ 66↓ 880.2%
30K· 18.64 mi
7:57/mi
2:21:57
↑ 181↓ 1480.2%
20M
7:58/mi
2:32:46
↑ 64↓ 500.2%
21M
8:14/mi
2:41:00
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:46:38
↑ 17↓ 861.7%
23M
7:54/mi
2:56:31
↑ 23↓ 630.6%
24M
7:27/mi
3:03:58
↓ 821.3%
40K· 24.85 mi
7:34/mi
3:10:26
↓ 200.3%
25.2M
8:01/mi
3:13:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:13/mi
3:20:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:48
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:41:45
Pace7:46 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5823:067:2623:06
7:26
-
10K
6.21 mi11:13:1746:257:2823:19
7:30
+0:04
15K
9.32 mi11:36:551:10:037:3123:38
7:36
+0:06
20K
12.43 mi12:00:331:33:417:3223:38
7:36
0:00
Half
13.11 mi12:05:401:38:487:325:07
7:30
-0:06
25K
15.53 mi12:24:081:57:167:3318:28
7:37
+0:07
30K
18.64 mi12:48:492:21:577:3724:41
7:57
+0:20
20M
20.00 mi12:59:382:32:467:3810:49
7:58
+0:01
21M
21.00 mi13:07:522:41:007:408:14
8:14
+0:16
35K
21.75 mi13:13:302:46:387:405:38
7:32
-0:42
23M
23.00 mi13:23:232:56:317:409:53
7:54
+0:22
24M
24.00 mi13:30:503:03:587:407:27
7:27
-0:27
40K
24.85 mi13:37:183:10:267:406:28
7:34
+0:07
25.2M
25.20 mi13:40:043:13:127:402:46
8:01
+0:27
Finish
26.22 mi13:47:253:20:337:397:21
7:13
-0:48

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

7:13 /mi

Average Pace

7:39 /mi

Slowest Pace

8:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:03

77% of race

Time at Steady Pace

46:30

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi10:49:5823:067:2623:06
7:26
#9099
10K
6.21 mi11:13:1746:257:2823:19
7:30
#9745
15K
9.32 mi11:36:551:10:037:3123:38
7:36
#10194
20K
12.43 mi12:00:331:33:417:3223:38
7:36
#10172
Half
13.11 mi12:05:401:38:487:325:07
7:30
#10159
25K
15.53 mi12:24:081:57:167:3318:28
7:37
#10030
30K
18.64 mi12:48:492:21:577:3724:41
7:57
#10088
20M
20.00 mi12:59:382:32:467:3810:49
7:58
#10054
21M
21.00 mi13:07:522:41:007:408:14
8:14
#9949
35K
21.75 mi13:13:302:46:387:405:38
7:32
#9895
23M
23.00 mi13:23:232:56:317:409:53
7:54
#9797
24M
24.00 mi13:30:503:03:587:407:27
7:27
#9654
40K
24.85 mi13:37:183:10:267:406:28
7:34
#9521
25.2M
25.20 mi13:40:043:13:127:402:46
8:01
#9455
Finish
26.22 mi13:47:253:20:337:397:21
7:13
#9340
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi90997659765911066(Top 42%)8662(Top 57%)8662(Top 422%)
10K6.21 mi3.10 mi9745-6468010-3518010-35110470(Top 39%)8416(Top 55%)8416(Top 410%)
15K9.32 mi3.11 mi10194-4498273-2638273-26311066(Top 42%)8662(Top 57%)8662(Top 422%)
20K12.43 mi3.11 mi10172+228246+278246+2710128(Top 38%)8137(Top 54%)8137(Top 397%)
Half13.11 mi0.68 mi10159+138230+168230+1610167(Top 38%)8179(Top 54%)8179(Top 399%)
25K15.53 mi2.42 mi10030+1298140+908140+909656(Top 36%)7791(Top 51%)7791(Top 380%)
30K18.64 mi3.11 mi10088-588142-28142-210458(Top 39%)8072(Top 53%)8072(Top 393%)
20M20.00 mi1.36 mi10054+348093+498093+499941(Top 37%)7723(Top 51%)7723(Top 376%)
21M21.00 mi1.00 mi9949+1058011+828011+828790(Top 33%)6945(Top 46%)6945(Top 338%)
35K21.75 mi0.75 mi9895+547967+447967+448710(Top 33%)6927(Top 46%)6927(Top 338%)
23M23.00 mi1.25 mi9797+987875+927875+929017(Top 34%)6971(Top 46%)6971(Top 340%)
24M24.00 mi1.00 mi9654+1437776+997776+997371(Top 28%)5941(Top 39%)5941(Top 290%)
40K24.85 mi0.85 mi9521+1337672+1047672+1047106(Top 27%)5699(Top 38%)5699(Top 278%)
25.2M25.20 mi0.35 mi9455+667621+517621+516644(Top 25%)5370(Top 35%)5370(Top 262%)
Finish26.22 mi1.02 mi9340+1157534+877534+876523(Top 25%)5274(Top 35%)5274(Top 257%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11066

Males

8662

M50-54

8662

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10470

Males

8416

M50-54

8416

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11066

Males

8662

M50-54

8662

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10128

Males

8137

M50-54

8137

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10167

Males

8179

M50-54

8179

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9656

Males

7791

M50-54

7791

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10458

Males

8072

M50-54

8072

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9941

Males

7723

M50-54

7723

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

8790

Males

6945

M50-54

6945

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8710

Males

6927

M50-54

6927

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9017

Males

6971

M50-54

6971

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7371

Males

5941

M50-54

5941

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7106

Males

5699

M50-54

5699

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6644

Males

5370

M50-54

5370

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6523

Males

5274

M50-54

5274

Passing Analysis

Category:
Athletes Passed
1623*
Passed By
1862
Net Change
-241
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9099
5K → 10K101747-646#9099#9745
10K → 15K63510-449#9745#10194
15K → 20K164*142+22#10194#10172
20K → Half4027+13#10172#10159
Half → 25K18859+129#10159#10030
25K → 30K132*190-58#10030#10088
30K → 20M10874+34#10088#10054
20M → 21M143*38+105#10054#9949
21M → 35K6814+54#9949#9895
35K → 23M13436+98#9895#9797
23M → 24M1485+143#9797#9654
24M → 40K139*6+133#9654#9521
40K → 25.2M693+66#9521#9455
25.2M → Finish12611+115#9455#9340
TOTALS1623*1862-241

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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