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BOSTON MARATHON 2023

Chase Smith

Bib: 1565•M

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Division (M18-39)
#0 / 5285
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:48
Rank: #1707
Start → 5K
6:22/mi
19:48 split
10K· 6.21 mi
39:19
Rank: #1679 (+28)
5K → 10K
6:17/mi
19:31 split
15K· 9.32 mi
59:17
Rank: #1834 (-155)
10K → 15K
6:26/mi
19:58 split
20K· 12.43 mi
1:19:12
Rank: #1821 (+13)
15K → 20K
6:25/mi
19:55 split
Half· 13.11 mi
1:23:29
Rank: #1814 (+7)
20K → Half
6:17/mi
4:17 split
25K· 15.53 mi
1:39:06
Rank: #1806 (+8)
Half → 25K
6:26/mi
15:37 split
30K· 18.64 mi
1:59:34
Rank: #1798 (+8)
25K → 30K
6:35/mi
20:28 split
20M
2:08:33
Rank: #1782 (+16)
30K → 20M
6:37/mi
8:59 split
21M
2:15:31
Rank: #1778 (+4)
20M → 21M
6:58/mi
6:58 split
35K· 21.75 mi
2:20:24
Rank: #1803 (-25)
21M → 35K
6:32/mi
4:53 split
23M
2:28:45
Rank: #1793 (+10)
35K → 23M
6:40/mi
8:21 split
24M
2:35:25
Rank: #1822 (-29)
23M → 24M
6:40/mi
6:40 split
40K· 24.85 mi
2:41:13
Rank: #1840 (-18)
24M → 40K
6:47/mi
5:48 split
25.2M
2:43:41
Rank: #1836 (+4)
40K → 25.2M
7:09/mi
2:28 split
Finish· 26.22 mi
2:50:37
Rank: #1881 (-45)
25.2M → Finish
6:48/mi
6:56 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:29
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:27:08
Pace6:39 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1619:486:2219:48
6:22
-
10K
6.21 mi10:39:4739:196:2019:31
6:17
-0:05
15K
9.32 mi10:59:4559:176:2219:58
6:26
+0:09
20K
12.43 mi11:19:401:19:126:2219:55
6:25
-0:01
Half
13.11 mi11:23:571:23:296:224:17
6:17
-0:08
25K
15.53 mi11:39:341:39:066:2315:37
6:26
+0:09
30K
18.64 mi12:00:021:59:346:2520:28
6:35
+0:09
20M
20.00 mi12:09:012:08:336:268:59
6:37
+0:02
21M
21.00 mi12:15:592:15:316:276:58
6:58
+0:21
35K
21.75 mi12:20:522:20:246:274:53
6:32
-0:26
23M
23.00 mi12:29:132:28:456:288:21
6:40
+0:08
24M
24.00 mi12:35:532:35:256:296:40
6:40
0:00
40K
24.85 mi12:41:412:41:136:295:48
6:47
+0:07
25.2M
25.20 mi12:44:092:43:416:302:28
7:09
+0:22
Finish
26.22 mi12:51:052:50:376:316:56
6:48
-0:21

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

6:17 /mi

Average Pace

6:31 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:11

94% of race

Time at Steady Pace

9:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:30 /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 mi10:20:1619:486:2219:48
6:22
#1707
10K
6.21 mi10:39:4739:196:2019:31
6:17
#1679
15K
9.32 mi10:59:4559:176:2219:58
6:26
#1834
20K
12.43 mi11:19:401:19:126:2219:55
6:25
#1821
Half
13.11 mi11:23:571:23:296:224:17
6:17
#1814
25K
15.53 mi11:39:341:39:066:2315:37
6:26
#1806
30K
18.64 mi12:00:021:59:346:2520:28
6:35
#1798
20M
20.00 mi12:09:012:08:336:268:59
6:37
#1782
21M
21.00 mi12:15:592:15:316:276:58
6:58
#1778
35K
21.75 mi12:20:522:20:246:274:53
6:32
#1803
23M
23.00 mi12:29:132:28:456:288:21
6:40
#1793
24M
24.00 mi12:35:532:35:256:296:40
6:40
#1822
40K
24.85 mi12:41:412:41:136:295:48
6:47
#1840
25.2M
25.20 mi12:44:092:43:416:302:28
7:09
#1836
Finish
26.22 mi12:51:052:50:376:316:56
6:48
#1881
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1707162716272235(Top 8%)2144(Top 14%)2144(Top 41%)
10K6.21 mi3.10 mi1679+281604+231604+231696(Top 6%)1622(Top 11%)1622(Top 31%)
15K9.32 mi3.11 mi1834-1551754-1501754-1502235(Top 8%)2144(Top 14%)2144(Top 41%)
20K12.43 mi3.11 mi1821+131743+111743+111845(Top 7%)1768(Top 12%)1768(Top 33%)
Half13.11 mi0.68 mi1814+71736+71736+71711(Top 6%)1641(Top 11%)1641(Top 31%)
25K15.53 mi2.42 mi1806+81727+91727+91910(Top 7%)1830(Top 12%)1830(Top 35%)
30K18.64 mi3.11 mi1798+81721+61721+61905(Top 7%)1823(Top 12%)1823(Top 34%)
20M20.00 mi1.36 mi1782+161704+171704+171901(Top 7%)1813(Top 12%)1813(Top 34%)
21M21.00 mi1.00 mi1778+41702+21702+21981(Top 7%)1876(Top 12%)1876(Top 35%)
35K21.75 mi0.75 mi1803-251724-221724-222525(Top 9%)2384(Top 16%)2384(Top 45%)
23M23.00 mi1.25 mi1793+101714+101714+102039(Top 8%)1929(Top 13%)1929(Top 36%)
24M24.00 mi1.00 mi1822-291742-281742-282886(Top 11%)2678(Top 18%)2678(Top 51%)
40K24.85 mi0.85 mi1840-181760-181760-182717(Top 10%)2503(Top 16%)2503(Top 47%)
25.2M25.20 mi0.35 mi1836+41756+41756+42255(Top 8%)2088(Top 14%)2088(Top 40%)
Finish26.22 mi1.02 mi1881-451798-421798-424049(Top 15%)3570(Top 24%)3570(Top 68%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21story building
+97ft-345ft

Overall

2235

Males

2144

M18-39

2144

5K→10K

3.1 - 6.2 mi

Top 6%
×5story building
+79ft-138ft

Overall

1696

Males

1622

M18-39

1622

10K→15K

6.2 - 9.3 mi

Top 8%
×3story building
+67ft-78ft

Overall

2235

Males

2144

M18-39

2144

15K→20K

9.3 - 12.4 mi

Top 7%
×5story building
+106ft-86ft

Overall

1845

Males

1768

M18-39

1768

20K→Half

12.4 - 13.1 mi

Top 6%
×2story building
+19ft-37ft

Overall

1711

Males

1641

M18-39

1641

Half→25K

13.1 - 15.5 mi

Top 7%
×4story building
+66ft-88ft

Overall

1910

Males

1830

M18-39

1830

25K→30K

15.5 - 18.6 mi

Top 7%
×9story building
+181ft-148ft

Overall

1905

Males

1823

M18-39

1823

30K→20M

18.6 - 20.0 mi

Top 7%
×5story building
+64ft-50ft

Overall

1901

Males

1813

M18-39

1813

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1981

Males

1876

M18-39

1876

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2525

Males

2384

M18-39

2384

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2039

Males

1929

M18-39

1929

23M→24M

23.0 - 24.0 mi

Top 11%
×6story building
+12ft-82ft

Overall

2886

Males

2678

M18-39

2678

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2717

Males

2503

M18-39

2503

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2255

Males

2088

M18-39

2088

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

4049

Males

3570

M18-39

3570

Passing Analysis

Category:
Athletes Passed
469
Passed By
643
Net Change
-174
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1707
5K → 10K10476+28#1707#1679
10K → 15K16171-155#1679#1834
15K → 20K6451+13#1834#1821
20K → Half125+7#1821#1814
Half → 25K3224+8#1814#1806
25K → 30K6153+8#1806#1798
30K → 20M4024+16#1798#1782
20M → 21M3026+4#1782#1778
21M → 35K1540-25#1778#1803
35K → 23M3323+10#1803#1793
23M → 24M1746-29#1793#1822
24M → 40K1937-18#1822#1840
40K → 25.2M139+4#1840#1836
25.2M → Finish1358-45#1836#1881
TOTALS469643-174
📊

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