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BOSTON MARATHON 2023

Joshua Grubb

Bib: 3544•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Division (M18-39)
#0 / 5285
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:13
Rank: #2306
Start → 5K
20:13 | 6:30/mi
10K· 6.21 mi
39:45
Rank: #1966 (+340)
5K → 10K
19:32 | 6:17/mi
15K· 9.32 mi
59:28
Rank: #1918 (+48)
10K → 15K
19:43 | 6:21/mi
20K· 12.43 mi
1:19:09
Rank: #1800 (+118)
15K → 20K
19:41 | 6:20/mi
Half· 13.11 mi
1:23:23
Rank: #1772 (+28)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:38:49
Rank: #1753 (+19)
Half → 25K
15:26 | 6:22/mi
30K· 18.64 mi
1:59:04
Rank: #1681 (+72)
25K → 30K
20:15 | 6:31/mi
20M
2:08:03
Rank: #1678 (+3)
30K → 20M
8:59 | 6:37/mi
21M
2:15:02
Rank: #1684 (-6)
20M → 21M
6:59 | 6:59/mi
35K· 21.75 mi
2:19:50
Rank: #1682 (+2)
21M → 35K
4:48 | 6:25/mi
23M
2:28:08
Rank: #1679 (+3)
35K → 23M
8:18 | 6:38/mi
24M
2:34:33
Rank: #1662 (+17)
23M → 24M
6:25 | 6:25/mi
40K· 24.85 mi
2:40:01
Rank: #1616 (+46)
24M → 40K
5:28 | 6:24/mi
25.2M
2:42:19
Rank: #1600 (+16)
40K → 25.2M
2:18 | 6:40/mi
Finish· 26.22 mi
2:48:26
Rank: #1532 (+68)
25.2M → Finish
6:07 | 6:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:23
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:25:03
Pace6:29 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2420:136:3020:13
6:30
-
10K
6.21 mi10:40:5639:456:2419:32
6:17
-0:13
15K
9.32 mi11:00:3959:286:2319:43
6:21
+0:04
20K
12.43 mi11:20:201:19:096:2219:41
6:20
-0:01
Half
13.11 mi11:24:341:23:236:224:14
6:12
-0:08
25K
15.53 mi11:40:001:38:496:2215:26
6:22
+0:10
30K
18.64 mi12:00:151:59:046:2320:15
6:31
+0:09
20M
20.00 mi12:09:142:08:036:248:59
6:37
+0:06
21M
21.00 mi12:16:132:15:026:266:59
6:59
+0:22
35K
21.75 mi12:21:012:19:506:264:48
6:25
-0:34
23M
23.00 mi12:29:192:28:086:268:18
6:38
+0:13
24M
24.00 mi12:35:442:34:336:266:25
6:25
-0:13
40K
24.85 mi12:41:122:40:016:265:28
6:24
-0:01
25.2M
25.20 mi12:43:302:42:196:262:18
6:40
+0:16
Finish
26.22 mi12:49:372:48:266:266:07
6:00
-0:40

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

6:00 /mi

Average Pace

6:26 /mi

Slowest Pace

6:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:52

84% of race

Time at Steady Pace

26:34

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:25 /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 mi10:21:2420:136:3020:13
6:30
#2306
10K
6.21 mi10:40:5639:456:2419:32
6:17
#1966
15K
9.32 mi11:00:3959:286:2319:43
6:21
#1918
20K
12.43 mi11:20:201:19:096:2219:41
6:20
#1800
Half
13.11 mi11:24:341:23:236:224:14
6:12
#1772
25K
15.53 mi11:40:001:38:496:2215:26
6:22
#1753
30K
18.64 mi12:00:151:59:046:2320:15
6:31
#1681
20M
20.00 mi12:09:142:08:036:248:59
6:37
#1678
21M
21.00 mi12:16:132:15:026:266:59
6:59
#1684
35K
21.75 mi12:21:012:19:506:264:48
6:25
#1682
23M
23.00 mi12:29:192:28:086:268:18
6:38
#1679
24M
24.00 mi12:35:442:34:336:266:25
6:25
#1662
40K
24.85 mi12:41:122:40:016:265:28
6:24
#1616
25.2M
25.20 mi12:43:302:42:196:262:18
6:40
#1600
Finish
26.22 mi12:49:372:48:266:266:07
6:00
#1532
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2306219821981849(Top 7%)1771(Top 12%)1771(Top 34%)
10K6.21 mi3.10 mi1966+3401883+3151883+3151719(Top 6%)1643(Top 11%)1643(Top 31%)
15K9.32 mi3.11 mi1918+481836+471836+471849(Top 7%)1771(Top 12%)1771(Top 34%)
20K12.43 mi3.11 mi1800+1181723+1131723+1131543(Top 6%)1474(Top 10%)1474(Top 28%)
Half13.11 mi0.68 mi1772+281695+281695+281399(Top 5%)1339(Top 9%)1339(Top 25%)
25K15.53 mi2.42 mi1753+191677+181677+181581(Top 6%)1515(Top 10%)1515(Top 29%)
30K18.64 mi3.11 mi1681+721606+711606+711625(Top 6%)1553(Top 10%)1553(Top 29%)
20M20.00 mi1.36 mi1678+31605+11605+11884(Top 7%)1796(Top 12%)1796(Top 34%)
21M21.00 mi1.00 mi1684-61610-51610-52054(Top 8%)1940(Top 13%)1940(Top 37%)
35K21.75 mi0.75 mi1682+21609+11609+12001(Top 8%)1899(Top 13%)1899(Top 36%)
23M23.00 mi1.25 mi1679+31606+31606+31876(Top 7%)1778(Top 12%)1778(Top 34%)
24M24.00 mi1.00 mi1662+171589+171589+171729(Top 6%)1630(Top 11%)1630(Top 31%)
40K24.85 mi0.85 mi1616+461544+451544+451187(Top 4%)1122(Top 7%)1122(Top 21%)
25.2M25.20 mi0.35 mi1600+161528+161528+16846(Top 3%)807(Top 5%)807(Top 15%)
Finish26.22 mi1.02 mi1532+681465+631465+63737(Top 3%)705(Top 5%)705(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1849

Males

1771

M18-39

1771

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1719

Males

1643

M18-39

1643

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1849

Males

1771

M18-39

1771

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1543

Males

1474

M18-39

1474

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1399

Males

1339

M18-39

1339

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1581

Males

1515

M18-39

1515

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1625

Males

1553

M18-39

1553

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1884

Males

1796

M18-39

1796

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2054

Males

1940

M18-39

1940

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2001

Males

1899

M18-39

1899

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1876

Males

1778

M18-39

1778

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1729

Males

1630

M18-39

1630

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1187

Males

1122

M18-39

1122

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

846

Males

807

M18-39

807

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

737

Males

705

M18-39

705

Passing Analysis

Category:
Athletes Passed
992
Passed By
218
Net Change
+774
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2306
5K → 10K35111+340#2306#1966
10K → 15K8537+48#1966#1918
15K → 20K13012+118#1918#1800
20K → Half291+28#1800#1772
Half → 25K4122+19#1772#1753
25K → 30K8917+72#1753#1681
30K → 20M2522+3#1681#1678
20M → 21M2127-6#1678#1684
21M → 35K1816+2#1684#1682
35K → 23M3330+3#1682#1679
23M → 24M3417+17#1679#1662
24M → 40K515+46#1662#1616
40K → 25.2M160+16#1616#1600
25.2M → Finish691+68#1600#1532
TOTALS992218+774
📊

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