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BOSTON MARATHON 2023

Robert Smith Iii

Bib: 30128•M

IL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 37%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:59
Rank: #14288
Start → 5K
24:59 | 8:02/mi
10K· 6.21 mi
47:58
Rank: #11991 (+2297)
5K → 10K
22:59 | 7:24/mi
15K· 9.32 mi
1:11:04
Rank: #11140 (+851)
10K → 15K
23:06 | 7:26/mi
20K· 12.43 mi
1:34:36
Rank: #10805 (+335)
15K → 20K
23:32 | 7:34/mi
Half· 13.11 mi
1:39:41
Rank: #10748 (+57)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:58:05
Rank: #10486 (+262)
Half → 25K
18:24 | 7:35/mi
30K· 18.64 mi
2:23:05
Rank: #10575 (-89)
25K → 30K
25:00 | 8:03/mi
20M
2:34:36
Rank: #10762 (-187)
30K → 20M
11:31 | 8:28/mi
21M
2:43:17
Rank: #10814 (-52)
20M → 21M
8:41 | 8:41/mi
35K· 21.75 mi
2:49:01
Rank: #10752 (+62)
21M → 35K
5:44 | 7:40/mi
23M
2:59:03
Rank: #10667 (+85)
35K → 23M
10:02 | 8:01/mi
24M
3:06:27
Rank: #10487 (+180)
23M → 24M
7:24 | 7:24/mi
40K· 24.85 mi
3:12:48
Rank: #10289 (+198)
24M → 40K
6:21 | 7:26/mi
25.2M
3:15:21
Rank: #10139 (+150)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
3:22:01
Rank: #9731 (+408)
25.2M → Finish
6:40 | 6:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:41
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:42:20
Pace7:48 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2824:598:0224:59
8:02
-
10K
6.21 mi12:07:2747:587:4322:59
7:24
-0:38
15K
9.32 mi12:30:331:11:047:3723:06
7:26
+0:02
20K
12.43 mi12:54:051:34:367:3723:32
7:34
+0:08
Half
13.11 mi12:59:101:39:417:365:05
7:27
-0:07
25K
15.53 mi13:17:341:58:057:3618:24
7:35
+0:08
30K
18.64 mi13:42:342:23:057:4125:00
8:03
+0:28
20M
20.00 mi13:54:052:34:367:4411:31
8:28
+0:25
21M
21.00 mi14:02:462:43:177:478:41
8:41
+0:13
35K
21.75 mi14:08:302:49:017:465:44
7:40
-1:01
23M
23.00 mi14:18:322:59:037:4710:02
8:01
+0:21
24M
24.00 mi14:25:563:06:277:467:24
7:24
-0:37
40K
24.85 mi14:32:173:12:487:456:21
7:26
+0:02
25.2M
25.20 mi14:34:503:15:217:452:33
7:24
-0:02
Finish
26.22 mi14:41:303:22:017:436:40
6:33
-0:51

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

6:33 /mi

Average Pace

7:43 /mi

Slowest Pace

8:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:40

3% of race

Time at Steady Pace

1:55:08

57% of race

Time at Slower Pace

1:20:13

40% of race

Average Pace: 7:42 /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 mi11:44:2824:598:0224:59
8:02
#14288
10K
6.21 mi12:07:2747:587:4322:59
7:24
#11991
15K
9.32 mi12:30:331:11:047:3723:06
7:26
#11140
20K
12.43 mi12:54:051:34:367:3723:32
7:34
#10805
Half
13.11 mi12:59:101:39:417:365:05
7:27
#10748
25K
15.53 mi13:17:341:58:057:3618:24
7:35
#10486
30K
18.64 mi13:42:342:23:057:4125:00
8:03
#10575
20M
20.00 mi13:54:052:34:367:4411:31
8:28
#10762
21M
21.00 mi14:02:462:43:177:478:41
8:41
#10814
35K
21.75 mi14:08:302:49:017:465:44
7:40
#10752
23M
23.00 mi14:18:322:59:037:4710:02
8:01
#10667
24M
24.00 mi14:25:563:06:277:467:24
7:24
#10487
40K
24.85 mi14:32:173:12:487:456:21
7:26
#10289
25.2M
25.20 mi14:34:503:15:217:452:33
7:24
#10139
Finish
26.22 mi14:41:303:22:017:436:40
6:33
#9731
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1428810067100679641(Top 36%)7945(Top 52%)7945(Top 150%)
10K6.21 mi3.10 mi11991+22979107+9609107+9609597(Top 36%)7925(Top 52%)7925(Top 150%)
15K9.32 mi3.11 mi11140+8518713+3948713+3949641(Top 36%)7945(Top 52%)7945(Top 150%)
20K12.43 mi3.11 mi10805+3358542+1718542+1719889(Top 37%)8011(Top 53%)8011(Top 152%)
Half13.11 mi0.68 mi10748+578518+248518+249781(Top 37%)7974(Top 53%)7974(Top 151%)
25K15.53 mi2.42 mi10486+2628382+1368382+1369455(Top 36%)7687(Top 51%)7687(Top 145%)
30K18.64 mi3.11 mi10575-898369+138369+1311252(Top 42%)8470(Top 56%)8470(Top 160%)
20M20.00 mi1.36 mi10762-1878432-638432-6313457(Top 51%)9328(Top 61%)9328(Top 176%)
21M21.00 mi1.00 mi10814-528435-38435-311530(Top 43%)8349(Top 55%)8349(Top 158%)
35K21.75 mi0.75 mi10752+628382+538382+539673(Top 36%)7445(Top 49%)7445(Top 141%)
23M23.00 mi1.25 mi10667+858309+738309+739818(Top 37%)7386(Top 49%)7386(Top 140%)
24M24.00 mi1.00 mi10487+1808196+1138196+1137065(Top 27%)5761(Top 38%)5761(Top 109%)
40K24.85 mi0.85 mi10289+1988078+1188078+1186254(Top 23%)5189(Top 34%)5189(Top 98%)
25.2M25.20 mi0.35 mi10139+1507994+847994+843450(Top 13%)3133(Top 21%)3133(Top 59%)
Finish26.22 mi1.02 mi9731+4087740+2547740+2542705(Top 10%)2477(Top 16%)2477(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9641

Males

7945

M18-39

7945

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

9597

Males

7925

M18-39

7925

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9641

Males

7945

M18-39

7945

15K→20K

9.3 - 12.4 mi

Top 37%
×5stories
+106ft-86ft

Overall

9889

Males

8011

M18-39

8011

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9781

Males

7974

M18-39

7974

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9455

Males

7687

M18-39

7687

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11252

Males

8470

M18-39

8470

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13457

Males

9328

M18-39

9328

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11530

Males

8349

M18-39

8349

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9673

Males

7445

M18-39

7445

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9818

Males

7386

M18-39

7386

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7065

Males

5761

M18-39

5761

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6254

Males

5189

M18-39

5189

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3450

Males

3133

M18-39

3133

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2705

Males

2477

M18-39

2477

Passing Analysis

Category:
Athletes Passed
5260*
Passed By
703
Net Change
+4557
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14288
5K → 10K23069+2297#14288#11991
10K → 15K86514+851#11991#11140
15K → 20K35621+335#11140#10805
20K → Half647+57#10805#10748
Half → 25K27917+262#10748#10486
25K → 30K146235-89#10486#10575
30K → 20M35*222-187#10575#10762
20M → 21M55107-52#10762#10814
21M → 35K7917+62#10814#10752
35K → 23M12944+85#10752#10667
23M → 24M1855+180#10667#10487
24M → 40K2035+198#10487#10289
40K → 25.2M150*0+150#10289#10139
25.2M → Finish408*0+408#10139#9731
TOTALS5260*703+4557

* 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