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BOSTON MARATHON 2023

Mark Heerensperger

Bib: 1459•M

TX

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 (M40-44)
#0 / 2241
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:03
Rank: #6846
Start → 5K
22:03 | 7:06/mi
10K· 6.21 mi
43:48
Rank: #6789 (+57)
5K → 10K
21:45 | 7:00/mi
15K· 9.32 mi
1:05:21
Rank: #6566 (+223)
10K → 15K
21:33 | 6:56/mi
20K· 12.43 mi
1:27:11
Rank: #6435 (+131)
15K → 20K
21:50 | 7:02/mi
Half· 13.11 mi
1:31:55
Rank: #6420 (+15)
20K → Half
4:44 | 6:56/mi
25K· 15.53 mi
1:48:55
Rank: #6286 (+134)
Half → 25K
17:00 | 7:01/mi
30K· 18.64 mi
2:11:02
Rank: #5992 (+294)
25K → 30K
22:07 | 7:07/mi
20M
2:20:46
Rank: #5883 (+109)
30K → 20M
9:44 | 7:10/mi
21M
2:28:09
Rank: #5738 (+145)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:33:12
Rank: #5654 (+84)
21M → 35K
5:03 | 6:45/mi
23M
2:41:51
Rank: #5441 (+213)
35K → 23M
8:39 | 6:55/mi
24M
2:48:33
Rank: #5286 (+155)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:54:17
Rank: #5114 (+172)
24M → 40K
5:44 | 6:42/mi
25.2M
2:56:49
Rank: #5072 (+42)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
3:03:42
Rank: #4994 (+78)
25.2M → Finish
6:53 | 6:45/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:31:55
Pace7:01 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:31:47
Pace7:00 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5122:037:0622:03
7:06
-
10K
6.21 mi10:45:3643:487:0321:45
7:00
-0:06
15K
9.32 mi11:07:091:05:217:0121:33
6:56
-0:04
20K
12.43 mi11:28:591:27:117:0121:50
7:02
+0:06
Half
13.11 mi11:33:431:31:557:014:44
6:56
-0:06
25K
15.53 mi11:50:431:48:557:0117:00
7:01
+0:05
30K
18.64 mi12:12:502:11:027:0222:07
7:07
+0:06
20M
20.00 mi12:22:342:20:467:029:44
7:10
+0:03
21M
21.00 mi12:29:572:28:097:037:23
7:23
+0:13
35K
21.75 mi12:35:002:33:127:035:03
6:45
-0:38
23M
23.00 mi12:43:392:41:517:028:39
6:55
+0:10
24M
24.00 mi12:50:212:48:337:016:42
6:42
-0:13
40K
24.85 mi12:56:052:54:177:015:44
6:42
0:00
25.2M
25.20 mi12:58:372:56:497:012:32
7:21
+0:39
Finish
26.22 mi13:05:303:03:427:016:53
6:45
-0:36

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

6:42 /mi

Average Pace

7:01 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:19

96% of race

Time at Steady Pace

7:23

4% 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 mi10:23:5122:037:0622:03
7:06
#6846
10K
6.21 mi10:45:3643:487:0321:45
7:00
#6789
15K
9.32 mi11:07:091:05:217:0121:33
6:56
#6566
20K
12.43 mi11:28:591:27:117:0121:50
7:02
#6435
Half
13.11 mi11:33:431:31:557:014:44
6:56
#6420
25K
15.53 mi11:50:431:48:557:0117:00
7:01
#6286
30K
18.64 mi12:12:502:11:027:0222:07
7:07
#5992
20M
20.00 mi12:22:342:20:467:029:44
7:10
#5883
21M
21.00 mi12:29:572:28:097:037:23
7:23
#5738
35K
21.75 mi12:35:002:33:127:035:03
6:45
#5654
23M
23.00 mi12:43:392:41:517:028:39
6:55
#5441
24M
24.00 mi12:50:212:48:337:016:42
6:42
#5286
40K
24.85 mi12:56:052:54:177:015:44
6:42
#5114
25.2M
25.20 mi12:58:372:56:497:012:32
7:21
#5072
Finish
26.22 mi13:05:303:03:427:016:53
6:45
#4994
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6846615661566169(Top 23%)5591(Top 37%)5591(Top 249%)
10K6.21 mi3.10 mi6789+576106+506106+506811(Top 26%)6094(Top 40%)6094(Top 272%)
15K9.32 mi3.11 mi6566+2235925+1815925+1816169(Top 23%)5591(Top 37%)5591(Top 249%)
20K12.43 mi3.11 mi6435+1315811+1145811+1146135(Top 23%)5571(Top 37%)5571(Top 249%)
Half13.11 mi0.68 mi6420+155797+145797+146161(Top 23%)5604(Top 37%)5604(Top 250%)
25K15.53 mi2.42 mi6286+1345695+1025695+1025628(Top 21%)5160(Top 34%)5160(Top 230%)
30K18.64 mi3.11 mi5992+2945463+2325463+2325035(Top 19%)4626(Top 30%)4626(Top 206%)
20M20.00 mi1.36 mi5883+1095368+955368+954919(Top 18%)4474(Top 29%)4474(Top 200%)
21M21.00 mi1.00 mi5738+1455246+1225246+1224074(Top 15%)3752(Top 25%)3752(Top 167%)
35K21.75 mi0.75 mi5654+845178+685178+683904(Top 15%)3598(Top 24%)3598(Top 161%)
23M23.00 mi1.25 mi5441+2134987+1914987+1913311(Top 12%)3080(Top 20%)3080(Top 137%)
24M24.00 mi1.00 mi5286+1554851+1364851+1363133(Top 12%)2908(Top 19%)2908(Top 130%)
40K24.85 mi0.85 mi5114+1724697+1544697+1542402(Top 9%)2232(Top 15%)2232(Top 100%)
25.2M25.20 mi0.35 mi5072+424662+354662+353210(Top 12%)2933(Top 19%)2933(Top 131%)
Finish26.22 mi1.02 mi4994+784589+734589+733820(Top 14%)3392(Top 22%)3392(Top 151%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6169

Males

5591

M40-44

5591

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6811

Males

6094

M40-44

6094

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6169

Males

5591

M40-44

5591

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6135

Males

5571

M40-44

5571

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6161

Males

5604

M40-44

5604

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5628

Males

5160

M40-44

5160

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5035

Males

4626

M40-44

4626

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4919

Males

4474

M40-44

4474

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4074

Males

3752

M40-44

3752

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3904

Males

3598

M40-44

3598

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3311

Males

3080

M40-44

3080

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3133

Males

2908

M40-44

2908

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2402

Males

2232

M40-44

2232

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3210

Males

2933

M40-44

2933

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3820

Males

3392

M40-44

3392

Passing Analysis

Category:
Athletes Passed
2171
Passed By
319
Net Change
+1852
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6846
5K → 10K227170+57#6846#6789
10K → 15K25633+223#6789#6566
15K → 20K17241+131#6566#6435
20K → Half238+15#6435#6420
Half → 25K15117+134#6420#6286
25K → 30K30713+294#6286#5992
30K → 20M11910+109#5992#5883
20M → 21M1494+145#5883#5738
21M → 35K851+84#5738#5654
35K → 23M2163+213#5654#5441
23M → 24M1583+155#5441#5286
24M → 40K1742+172#5286#5114
40K → 25.2M453+42#5114#5072
25.2M → Finish8911+78#5072#4994
TOTALS2171319+1852
📊

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