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BOSTON MARATHON 2023

Rob Byrd

Bib: 900•M

OH

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 13%
Division (M18-39)
#0 / 5285
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:55
Rank: #878
Start → 5K
18:55 | 6:05/mi
10K· 6.21 mi
38:01
Rank: #1014 (-136)
5K → 10K
19:06 | 6:09/mi
15K· 9.32 mi
57:16
Rank: #1068 (-54)
10K → 15K
19:15 | 6:12/mi
20K· 12.43 mi
1:16:50
Rank: #1114 (-46)
15K → 20K
19:34 | 6:18/mi
Half· 13.11 mi
1:21:04
Rank: #1122 (-8)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:36:58
Rank: #1264 (-142)
Half → 25K
15:54 | 6:33/mi
30K· 18.64 mi
1:57:58
Rank: #1458 (-194)
25K → 30K
21:00 | 6:46/mi
20M
2:07:30
Rank: #1582 (-124)
30K → 20M
9:32 | 7:01/mi
21M
2:14:30
Rank: #1592 (-10)
20M → 21M
7:00 | 7:00/mi
35K· 21.75 mi
2:19:03
Rank: #1551 (+41)
21M → 35K
4:33 | 6:05/mi
23M
2:27:38
Rank: #1598 (-47)
35K → 23M
8:35 | 6:51/mi
24M
2:34:41
Rank: #1695 (-97)
23M → 24M
7:03 | 7:03/mi
40K· 24.85 mi
2:41:13
Rank: #1841 (-146)
24M → 40K
6:32 | 7:38/mi
25.2M
2:44:03
Rank: #1891 (-50)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
2:51:25
Rank: #2005 (-114)
25.2M → Finish
7:22 | 7:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:04
Pace6:11 /mi
2nd Half
Distance13.11 mi
Time1:30:21
Pace6:54 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0318:556:0518:55
6:05
-
10K
6.21 mi10:38:0938:016:0719:06
6:09
+0:04
15K
9.32 mi10:57:2457:166:0919:15
6:12
+0:03
20K
12.43 mi11:16:581:16:506:1119:34
6:18
+0:06
Half
13.11 mi11:21:121:21:046:114:14
6:12
-0:06
25K
15.53 mi11:37:061:36:586:1515:54
6:33
+0:21
30K
18.64 mi11:58:061:57:586:2021:00
6:46
+0:13
20M
20.00 mi12:07:382:07:306:229:32
7:01
+0:15
21M
21.00 mi12:14:382:14:306:247:00
7:00
-0:01
35K
21.75 mi12:19:112:19:036:244:33
6:05
-0:55
23M
23.00 mi12:27:462:27:386:258:35
6:51
+0:46
24M
24.00 mi12:34:492:34:416:277:03
7:03
+0:12
40K
24.85 mi12:41:212:41:136:296:32
7:38
+0:35
25.2M
25.20 mi12:44:112:44:036:312:50
8:13
+0:35
Finish
26.22 mi12:51:332:51:256:337:22
7:14
-0:59

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

6:05 /mi

Average Pace

6:33 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:37

50% of race

Time at Steady Pace

1:09:04

40% of race

Time at Slower Pace

16:44

10% of race

Average Pace: 6:32 /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 mi10:19:0318:556:0518:55
6:05
#878
10K
6.21 mi10:38:0938:016:0719:06
6:09
#1014
15K
9.32 mi10:57:2457:166:0919:15
6:12
#1068
20K
12.43 mi11:16:581:16:506:1119:34
6:18
#1114
Half
13.11 mi11:21:121:21:046:114:14
6:12
#1122
25K
15.53 mi11:37:061:36:586:1515:54
6:33
#1264
30K
18.64 mi11:58:061:57:586:2021:00
6:46
#1458
20M
20.00 mi12:07:382:07:306:229:32
7:01
#1582
21M
21.00 mi12:14:382:14:306:247:00
7:00
#1592
35K
21.75 mi12:19:112:19:036:244:33
6:05
#1551
23M
23.00 mi12:27:462:27:386:258:35
6:51
#1598
24M
24.00 mi12:34:492:34:416:277:03
7:03
#1695
40K
24.85 mi12:41:212:41:136:296:32
7:38
#1841
25.2M
25.20 mi12:44:112:44:036:312:50
8:13
#1891
Finish
26.22 mi12:51:332:51:256:337:22
7:14
#2005
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8788258251233(Top 5%)1176(Top 8%)1176(Top 22%)
10K6.21 mi3.10 mi1014-136958-133958-1331174(Top 4%)1114(Top 7%)1114(Top 21%)
15K9.32 mi3.11 mi1068-541012-541012-541233(Top 5%)1176(Top 8%)1176(Top 22%)
20K12.43 mi3.11 mi1114-461059-471059-471376(Top 5%)1315(Top 9%)1315(Top 25%)
Half13.11 mi0.68 mi1122-81067-81067-81417(Top 5%)1357(Top 9%)1357(Top 26%)
25K15.53 mi2.42 mi1264-1421208-1411208-1412452(Top 9%)2344(Top 15%)2344(Top 44%)
30K18.64 mi3.11 mi1458-1941394-1861394-1862724(Top 10%)2586(Top 17%)2586(Top 49%)
20M20.00 mi1.36 mi1582-1241511-1171511-1174090(Top 15%)3780(Top 25%)3780(Top 72%)
21M21.00 mi1.00 mi1592-101522-111522-112137(Top 8%)2018(Top 13%)2018(Top 38%)
35K21.75 mi0.75 mi1551+411482+401482+40902(Top 3%)859(Top 6%)859(Top 16%)
23M23.00 mi1.25 mi1598-471528-461528-462943(Top 11%)2744(Top 18%)2744(Top 52%)
24M24.00 mi1.00 mi1695-971622-941622-944873(Top 18%)4325(Top 28%)4325(Top 82%)
40K24.85 mi0.85 mi1841-1461761-1391761-1397513(Top 28%)5925(Top 39%)5925(Top 112%)
25.2M25.20 mi0.35 mi1891-501807-461807-467656(Top 29%)5932(Top 39%)5932(Top 112%)
Finish26.22 mi1.02 mi2005-1141921-1141921-1146579(Top 25%)5290(Top 35%)5290(Top 100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1233

Males

1176

M18-39

1176

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1174

Males

1114

M18-39

1114

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1233

Males

1176

M18-39

1176

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1376

Males

1315

M18-39

1315

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1417

Males

1357

M18-39

1357

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2452

Males

2344

M18-39

2344

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2724

Males

2586

M18-39

2586

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4090

Males

3780

M18-39

3780

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2137

Males

2018

M18-39

2018

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

902

Males

859

M18-39

859

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2943

Males

2744

M18-39

2744

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4873

Males

4325

M18-39

4325

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7513

Males

5925

M18-39

5925

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7656

Males

5932

M18-39

5932

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6579

Males

5290

M18-39

5290

Passing Analysis

Category:
Athletes Passed
152
Passed By
1279
Net Change
-1127
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#878
5K → 10K10146-136#878#1014
10K → 15K1367-54#1014#1068
15K → 20K1662-46#1068#1114
20K → Half19-8#1114#1122
Half → 25K2144-142#1122#1264
25K → 30K16210-194#1264#1458
30K → 20M3127-124#1458#1582
20M → 21M2131-10#1582#1592
21M → 35K410+41#1592#1551
35K → 23M1057-47#1551#1598
23M → 24M6103-97#1598#1695
24M → 40K5151-146#1695#1841
40K → 25.2M151-50#1841#1891
25.2M → Finish7121-114#1891#2005
TOTALS1521279-1127
📊

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