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BOSTON MARATHON 2023

Justin Brooke

Bib: 13574•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 46%
Masters (Masters Men)
#0 / 9891
Top 34%
Division (M50-54)
#0 / 2052
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:20
Rank: #9709
Start → 5K
23:20 | 7:31/mi
10K· 6.21 mi
46:30
Rank: #9863 (-154)
5K → 10K
23:10 | 7:27/mi
15K· 9.32 mi
1:09:58
Rank: #10113 (-250)
10K → 15K
23:28 | 7:33/mi
20K· 12.43 mi
1:33:48
Rank: #10253 (-140)
15K → 20K
23:50 | 7:40/mi
Half· 13.11 mi
1:38:57
Rank: #10260 (-7)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
1:57:22
Rank: #10086 (+174)
Half → 25K
18:25 | 7:36/mi
30K· 18.64 mi
2:21:28
Rank: #9895 (+191)
25K → 30K
24:06 | 7:45/mi
20M
2:31:38
Rank: #9608 (+287)
30K → 20M
10:10 | 7:29/mi
21M
2:39:35
Rank: #9418 (+190)
20M → 21M
7:57 | 7:57/mi
35K· 21.75 mi
2:44:48
Rank: #9219 (+199)
21M → 35K
5:13 | 6:58/mi
23M
2:53:49
Rank: #8898 (+321)
35K → 23M
9:01 | 7:12/mi
24M
3:00:55
Rank: #8702 (+196)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
3:07:09
Rank: #8551 (+151)
24M → 40K
6:14 | 7:17/mi
25.2M
3:09:53
Rank: #8488 (+63)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:17:09
Rank: #8345 (+143)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:57
Pace7:33 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:38:12
Pace7:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4323:207:3123:20
7:31
-
10K
6.21 mi11:14:5346:307:2923:10
7:27
-0:04
15K
9.32 mi11:38:211:09:587:3023:28
7:33
+0:06
20K
12.43 mi12:02:111:33:487:3323:50
7:40
+0:07
Half
13.11 mi12:07:201:38:577:335:09
7:33
-0:07
25K
15.53 mi12:25:451:57:227:3318:25
7:36
+0:03
30K
18.64 mi12:49:512:21:287:3524:06
7:45
+0:09
20M
20.00 mi13:00:012:31:387:3510:10
7:29
-0:16
21M
21.00 mi13:07:582:39:357:367:57
7:57
+0:28
35K
21.75 mi13:13:112:44:487:355:13
6:58
-0:59
23M
23.00 mi13:22:122:53:497:339:01
7:12
+0:14
24M
24.00 mi13:29:183:00:557:327:06
7:06
-0:06
40K
24.85 mi13:35:323:07:097:326:14
7:17
+0:11
25.2M
25.20 mi13:38:163:09:537:322:44
7:56
+0:39
Finish
26.22 mi13:45:323:17:097:317:16
7:08
-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

6:58 /mi

Average Pace

7:31 /mi

Slowest Pace

7:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:32

70% of race

Time at Steady Pace

58:37

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:31 /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 mi10:51:4323:207:3123:20
7:31
#9709
10K
6.21 mi11:14:5346:307:2923:10
7:27
#9863
15K
9.32 mi11:38:211:09:587:3023:28
7:33
#10113
20K
12.43 mi12:02:111:33:487:3323:50
7:40
#10253
Half
13.11 mi12:07:201:38:577:335:09
7:33
#10260
25K
15.53 mi12:25:451:57:227:3318:25
7:36
#10086
30K
18.64 mi12:49:512:21:287:3524:06
7:45
#9895
20M
20.00 mi13:00:012:31:387:3510:10
7:29
#9608
21M
21.00 mi13:07:582:39:357:367:57
7:57
#9418
35K
21.75 mi13:13:112:44:487:355:13
6:58
#9219
23M
23.00 mi13:22:122:53:497:339:01
7:12
#8898
24M
24.00 mi13:29:183:00:557:327:06
7:06
#8702
40K
24.85 mi13:35:323:07:097:326:14
7:17
#8551
25.2M
25.20 mi13:38:163:09:537:322:44
7:56
#8488
Finish
26.22 mi13:45:323:17:097:317:16
7:08
#8345
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi97097983798310579(Top 40%)8436(Top 56%)8436(Top 411%)
10K6.21 mi3.10 mi9863-1548076-938076-9310103(Top 38%)8219(Top 54%)8219(Top 401%)
15K9.32 mi3.11 mi10113-2508228-1528228-15210579(Top 40%)8436(Top 56%)8436(Top 411%)
20K12.43 mi3.11 mi10253-1408288-608288-6010663(Top 40%)8407(Top 55%)8407(Top 410%)
Half13.11 mi0.68 mi10260-78290-28290-210513(Top 39%)8335(Top 55%)8335(Top 406%)
25K15.53 mi2.42 mi10086+1748174+1168174+1169488(Top 36%)7699(Top 51%)7699(Top 375%)
30K18.64 mi3.11 mi9895+1918035+1398035+1399023(Top 34%)7292(Top 48%)7292(Top 355%)
20M20.00 mi1.36 mi9608+2877839+1967839+1966674(Top 25%)5762(Top 38%)5762(Top 281%)
21M21.00 mi1.00 mi9418+1907706+1337706+1337028(Top 26%)5884(Top 39%)5884(Top 287%)
35K21.75 mi0.75 mi9219+1997569+1377569+1375219(Top 20%)4670(Top 31%)4670(Top 228%)
23M23.00 mi1.25 mi8898+3217359+2107359+2104807(Top 18%)4323(Top 28%)4323(Top 211%)
24M24.00 mi1.00 mi8702+1967220+1397220+1395212(Top 20%)4585(Top 30%)4585(Top 223%)
40K24.85 mi0.85 mi8551+1517108+1127108+1125408(Top 20%)4638(Top 31%)4638(Top 226%)
25.2M25.20 mi0.35 mi8488+637064+447064+446085(Top 23%)5016(Top 33%)5016(Top 244%)
Finish26.22 mi1.02 mi8345+1436948+1166948+1165994(Top 23%)4933(Top 33%)4933(Top 240%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10579

Males

8436

M50-54

8436

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10103

Males

8219

M50-54

8219

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10579

Males

8436

M50-54

8436

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10663

Males

8407

M50-54

8407

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10513

Males

8335

M50-54

8335

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9488

Males

7699

M50-54

7699

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9023

Males

7292

M50-54

7292

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

6674

Males

5762

M50-54

5762

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7028

Males

5884

M50-54

5884

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5219

Males

4670

M50-54

4670

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4807

Males

4323

M50-54

4323

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5212

Males

4585

M50-54

4585

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5408

Males

4638

M50-54

4638

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6085

Males

5016

M50-54

5016

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

5994

Males

4933

M50-54

4933

Passing Analysis

Category:
Athletes Passed
2553*
Passed By
1187
Net Change
+1364
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9709
5K → 10K242396-154#9709#9863
10K → 15K105353-250#9863#10113
15K → 20K111*251-140#10113#10253
20K → Half2633-7#10253#10260
Half → 25K21945+174#10260#10086
25K → 30K263*72+191#10086#9895
30K → 20M2914+287#9895#9608
20M → 21M1977+190#9608#9418
21M → 35K1990+199#9418#9219
35K → 23M3221+321#9219#8898
23M → 24M1993+196#8898#8702
24M → 40K1543+151#8702#8551
40K → 25.2M674+63#8551#8488
25.2M → Finish15815+143#8488#8345
TOTALS2553*1187+1364

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

📊

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