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BOSTON MARATHON 2023

Steven Brenner

Bib: 12257•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 41%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 45%
Division (M50-54)
#0 / 2052
Top 47%
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
7:39/mi
23:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
47:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:11:42
↑ 67↓ 78
20K· 12.43 mi
7:49/mi
1:35:58
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:41:10
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
2:00:12
↑ 66↓ 880.2%
30K· 18.64 mi
8:05/mi
2:25:19
↑ 181↓ 1480.2%
20M
7:58/mi
2:36:08
↑ 64↓ 500.2%
21M
8:30/mi
2:44:38
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:50:17
↑ 17↓ 861.7%
23M
8:06/mi
3:00:26
↑ 23↓ 630.6%
24M
7:48/mi
3:08:14
↓ 821.3%
40K· 24.85 mi
7:53/mi
3:14:58
↓ 200.3%
25.2M
8:36/mi
3:17:56
↑ 13↓ 160.2%
Finish· 26.22 mi
7:49/mi
3:25:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:10
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:44:44
Pace7:59 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:2423:467:3923:46
7:39
-
10K
6.21 mi11:15:2247:447:4123:58
7:43
+0:04
15K
9.32 mi11:39:201:11:427:4223:58
7:43
0:00
20K
12.43 mi12:03:361:35:587:4324:16
7:49
+0:06
Half
13.11 mi12:08:481:41:107:435:12
7:37
-0:12
25K
15.53 mi12:27:502:00:127:4419:02
7:51
+0:14
30K
18.64 mi12:52:572:25:197:4825:07
8:05
+0:14
20M
20.00 mi13:03:462:36:087:4810:49
7:58
-0:07
21M
21.00 mi13:12:162:44:387:508:30
8:30
+0:32
35K
21.75 mi13:17:552:50:177:505:39
7:33
-0:57
23M
23.00 mi13:28:043:00:267:5110:09
8:06
+0:33
24M
24.00 mi13:35:523:08:147:517:48
7:48
-0:18
40K
24.85 mi13:42:363:14:587:516:44
7:53
+0:05
25.2M
25.20 mi13:45:343:17:567:512:58
8:36
+0:43
Finish
26.22 mi13:53:323:25:547:527:58
7:49
-0:47

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

7:33 /mi

Average Pace

7:52 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:26

94% of race

Time at Steady Pace

11:28

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:51 /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 mi10:51:2423:467:3923:46
7:39
#11009
10K
6.21 mi11:15:2247:447:4123:58
7:43
#11627
15K
9.32 mi11:39:201:11:427:4223:58
7:43
#11718
20K
12.43 mi12:03:361:35:587:4324:16
7:49
#11709
Half
13.11 mi12:08:481:41:107:435:12
7:37
#11680
25K
15.53 mi12:27:502:00:127:4419:02
7:51
#11591
30K
18.64 mi12:52:572:25:197:4825:07
8:05
#11573
20M
20.00 mi13:03:462:36:087:4810:49
7:58
#11413
21M
21.00 mi13:12:162:44:387:508:30
8:30
#11325
35K
21.75 mi13:17:552:50:177:505:39
7:33
#11226
23M
23.00 mi13:28:043:00:267:5110:09
8:06
#11163
24M
24.00 mi13:35:523:08:147:517:48
7:48
#11099
40K
24.85 mi13:42:363:14:587:516:44
7:53
#11000
25.2M
25.20 mi13:45:343:17:567:512:58
8:36
#10961
Finish
26.22 mi13:53:323:25:547:527:58
7:49
#10941
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi110098664866411942(Top 45%)9053(Top 60%)9053(Top 441%)
10K6.21 mi3.10 mi11627-6188945-2818945-28112363(Top 46%)9274(Top 61%)9274(Top 452%)
15K9.32 mi3.11 mi11718-918963-188963-1811942(Top 45%)9053(Top 60%)9053(Top 441%)
20K12.43 mi3.11 mi11709+98944+198944+1911819(Top 44%)8940(Top 59%)8940(Top 436%)
Half13.11 mi0.68 mi11680+298931+138931+1311157(Top 42%)8689(Top 57%)8689(Top 423%)
25K15.53 mi2.42 mi11591+898882+498882+4911495(Top 43%)8710(Top 57%)8710(Top 424%)
30K18.64 mi3.11 mi11573+188824+588824+5811538(Top 43%)8602(Top 57%)8602(Top 419%)
20M20.00 mi1.36 mi11413+1608731+938731+939962(Top 37%)7744(Top 51%)7744(Top 377%)
21M21.00 mi1.00 mi11325+888675+568675+5610479(Top 39%)7848(Top 52%)7848(Top 382%)
35K21.75 mi0.75 mi11226+998621+548621+548915(Top 33%)7039(Top 46%)7039(Top 343%)
23M23.00 mi1.25 mi11163+638565+568565+5610502(Top 39%)7724(Top 51%)7724(Top 376%)
24M24.00 mi1.00 mi11099+648509+568509+569778(Top 37%)7284(Top 48%)7284(Top 355%)
40K24.85 mi0.85 mi11000+998432+778432+779158(Top 34%)6904(Top 45%)6904(Top 336%)
25.2M25.20 mi0.35 mi10961+398396+368396+3610126(Top 38%)7360(Top 48%)7360(Top 359%)
Finish26.22 mi1.02 mi10941+208362+348362+3410780(Top 40%)7691(Top 51%)7691(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

11942

Males

9053

M50-54

9053

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12363

Males

9274

M50-54

9274

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

11942

Males

9053

M50-54

9053

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11819

Males

8940

M50-54

8940

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11157

Males

8689

M50-54

8689

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11495

Males

8710

M50-54

8710

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11538

Males

8602

M50-54

8602

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9962

Males

7744

M50-54

7744

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10479

Males

7848

M50-54

7848

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8915

Males

7039

M50-54

7039

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10502

Males

7724

M50-54

7724

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9778

Males

7284

M50-54

7284

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9158

Males

6904

M50-54

6904

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10126

Males

7360

M50-54

7360

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10780

Males

7691

M50-54

7691

Passing Analysis

Category:
Athletes Passed
1723
Passed By
1655
Net Change
+68
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11009
5K → 10K105723-618#11009#11627
10K → 15K145236-91#11627#11718
15K → 20K171162+9#11718#11709
20K → Half4314+29#11709#11680
Half → 25K18798+89#11680#11591
25K → 30K184166+18#11591#11573
30K → 20M17616+160#11573#11413
20M → 21M13749+88#11413#11325
21M → 35K11011+99#11325#11226
35K → 23M10946+63#11226#11163
23M → 24M11046+64#11163#11099
24M → 40K11516+99#11099#11000
40K → 25.2M5718+39#11000#10961
25.2M → Finish7454+20#10961#10941
TOTALS17231655+68
📊

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