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BOSTON MARATHON 2023

Matthew Heiblim

Bib: 7237•M

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
8:00/mi
24:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
50:48
↑ 79↓ 1380.4%
15K· 9.32 mi
8:23/mi
1:16:52
↑ 67↓ 78
20K· 12.43 mi
8:27/mi
1:43:07
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:48:45
↑ 19↓ 370.5%
25K· 15.53 mi
8:23/mi
2:09:05
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:35:58
↑ 181↓ 1480.2%
20M
8:37/mi
2:47:41
↑ 64↓ 500.2%
21M
8:56/mi
2:56:37
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
3:02:50
↑ 17↓ 861.7%
23M
8:37/mi
3:13:37
↑ 23↓ 630.6%
24M
8:08/mi
3:21:45
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:28:48
↓ 200.3%
25.2M
8:27/mi
3:31:43
↑ 13↓ 160.2%
Finish· 26.22 mi
7:27/mi
3:39:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:45
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:50:34
Pace8:26 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:4824:508:0024:50
8:00
-
10K
6.21 mi10:55:4650:488:1125:58
8:21
+0:21
15K
9.32 mi11:21:501:16:528:1526:04
8:23
+0:02
20K
12.43 mi11:48:051:43:078:1826:15
8:27
+0:04
Half
13.11 mi11:53:431:48:458:185:38
8:15
-0:12
25K
15.53 mi12:14:032:09:058:1920:20
8:23
+0:08
30K
18.64 mi12:40:562:35:588:2226:53
8:39
+0:16
20M
20.00 mi12:52:392:47:418:2311:43
8:37
-0:02
21M
21.00 mi13:01:352:56:378:258:56
8:56
+0:19
35K
21.75 mi13:07:483:02:508:246:13
8:19
-0:37
23M
23.00 mi13:18:353:13:378:2510:47
8:37
+0:18
24M
24.00 mi13:26:433:21:458:248:08
8:08
-0:29
40K
24.85 mi13:33:463:28:488:247:03
8:15
+0:07
25.2M
25.20 mi13:36:413:31:438:242:55
8:27
+0:12
Finish
26.22 mi13:44:173:39:198:227:36
7:27
-1:00

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

7:27 /mi

Average Pace

8:22 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:34

18% of race

Time at Steady Pace

2:49:49

77% of race

Time at Slower Pace

8:56

4% of race

Average Pace: 8:22 /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 mi10:29:4824:508:0024:50
8:00
#13960
10K
6.21 mi10:55:4650:488:1125:58
8:21
#15647
15K
9.32 mi11:21:501:16:528:1526:04
8:23
#16154
20K
12.43 mi11:48:051:43:078:1826:15
8:27
#16260
Half
13.11 mi11:53:431:48:458:185:38
8:15
#16246
25K
15.53 mi12:14:032:09:058:1920:20
8:23
#16094
30K
18.64 mi12:40:562:35:588:2226:53
8:39
#15907
20M
20.00 mi12:52:392:47:418:2311:43
8:37
#15772
21M
21.00 mi13:01:352:56:378:258:56
8:56
#15598
35K
21.75 mi13:07:483:02:508:246:13
8:19
#15537
23M
23.00 mi13:18:353:13:378:2510:47
8:37
#15419
24M
24.00 mi13:26:433:21:458:248:08
8:08
#15245
40K
24.85 mi13:33:463:28:488:247:03
8:15
#15117
25.2M
25.20 mi13:36:413:31:438:242:55
8:27
#15014
Finish
26.22 mi13:44:173:39:198:227:36
7:27
#14757
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi139609934993417075(Top 64%)11084(Top 73%)11084(Top 495%)
10K6.21 mi3.10 mi15647-168710566-63210566-63217279(Top 65%)11209(Top 74%)11209(Top 500%)
15K9.32 mi3.11 mi16154-50710753-18710753-18717075(Top 64%)11084(Top 73%)11084(Top 495%)
20K12.43 mi3.11 mi16260-10610779-2610779-2616519(Top 62%)10838(Top 71%)10838(Top 484%)
Half13.11 mi0.68 mi16246+1410771+810771+816138(Top 61%)10723(Top 71%)10723(Top 478%)
25K15.53 mi2.42 mi16094+15210681+9010681+9015482(Top 58%)10330(Top 68%)10330(Top 461%)
30K18.64 mi3.11 mi15907+18710567+11410567+11415227(Top 57%)10134(Top 67%)10134(Top 452%)
20M20.00 mi1.36 mi15772+13510496+7110496+7114381(Top 54%)9727(Top 64%)9727(Top 434%)
21M21.00 mi1.00 mi15598+17410398+9810398+9813017(Top 49%)9050(Top 60%)9050(Top 404%)
35K21.75 mi0.75 mi15537+6110359+3910359+3914130(Top 53%)9485(Top 63%)9485(Top 423%)
23M23.00 mi1.25 mi15419+11810287+7210287+7213851(Top 52%)9303(Top 61%)9303(Top 415%)
24M24.00 mi1.00 mi15245+17410220+6710220+6712139(Top 46%)8465(Top 56%)8465(Top 378%)
40K24.85 mi0.85 mi15117+12810150+7010150+7011664(Top 44%)8166(Top 54%)8166(Top 364%)
25.2M25.20 mi0.35 mi15014+10310098+5210098+529256(Top 35%)6916(Top 46%)6916(Top 309%)
Finish26.22 mi1.02 mi14757+2579975+1239975+1238244(Top 31%)6317(Top 42%)6317(Top 282%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

17075

Males

11084

M40-44

11084

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

17279

Males

11209

M40-44

11209

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

17075

Males

11084

M40-44

11084

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16519

Males

10838

M40-44

10838

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16138

Males

10723

M40-44

10723

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15482

Males

10330

M40-44

10330

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15227

Males

10134

M40-44

10134

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14381

Males

9727

M40-44

9727

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13017

Males

9050

M40-44

9050

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14130

Males

9485

M40-44

9485

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13851

Males

9303

M40-44

9303

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12139

Males

8465

M40-44

8465

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11664

Males

8166

M40-44

8166

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9256

Males

6916

M40-44

6916

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8244

Males

6317

M40-44

6317

Passing Analysis

Category:
Athletes Passed
2002
Passed By
2799
Net Change
-797
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13960
5K → 10K181705-1687#13960#15647
10K → 15K62569-507#15647#16154
15K → 20K134240-106#16154#16260
20K → Half4329+14#16260#16246
Half → 25K22573+152#16246#16094
25K → 30K26174+187#16094#15907
30K → 20M16429+135#15907#15772
20M → 21M19117+174#15772#15598
21M → 35K7817+61#15598#15537
35K → 23M14527+118#15537#15419
23M → 24M1828+174#15419#15245
24M → 40K1379+128#15245#15117
40K → 25.2M1030+103#15117#15014
25.2M → Finish2592+257#15014#14757
TOTALS20022799-797
📊

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