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BOSTON MARATHON 2023

David Smith

Bib: 9747•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 32%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 35%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:22
Rank: #7490
Start → 5K
22:22 | 7:12/mi
10K· 6.21 mi
43:59
Rank: #6974 (+516)
5K → 10K
21:37 | 6:57/mi
15K· 9.32 mi
1:05:40
Rank: #6758 (+216)
10K → 15K
21:41 | 6:59/mi
20K· 12.43 mi
1:27:40
Rank: #6664 (+94)
15K → 20K
22:00 | 7:05/mi
Half· 13.11 mi
1:32:29
Rank: #6671 (-7)
20K → Half
4:49 | 7:04/mi
25K· 15.53 mi
1:50:27
Rank: #6827 (-156)
Half → 25K
17:58 | 7:25/mi
30K· 18.64 mi
2:14:23
Rank: #7038 (-211)
25K → 30K
23:56 | 7:42/mi
20M
2:24:51
Rank: #7063 (-25)
30K → 20M
10:28 | 7:42/mi
21M
2:34:33
Rank: #7594 (-531)
20M → 21M
9:42 | 9:42/mi
35K· 21.75 mi
2:40:21
Rank: #7650 (-56)
21M → 35K
5:48 | 7:45/mi
23M
2:51:36
Rank: #8155 (-505)
35K → 23M
11:15 | 8:59/mi
24M
2:59:44
Rank: #8327 (-172)
23M → 24M
8:08 | 8:08/mi
40K· 24.85 mi
3:06:50
Rank: #8442 (-115)
24M → 40K
7:06 | 8:18/mi
25.2M
3:09:55
Rank: #8502 (-60)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:18:11
Rank: #8651 (-149)
25.2M → Finish
8:16 | 8:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:29
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:45:42
Pace8:04 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5922:227:1222:22
7:12
-
10K
6.21 mi11:09:3643:597:0521:37
6:57
-0:15
15K
9.32 mi11:31:171:05:407:0321:41
6:59
+0:02
20K
12.43 mi11:53:171:27:407:0322:00
7:05
+0:06
Half
13.11 mi11:58:061:32:297:034:49
7:04
-0:01
25K
15.53 mi12:16:041:50:277:0717:58
7:25
+0:21
30K
18.64 mi12:40:002:14:237:1323:56
7:42
+0:17
20M
20.00 mi12:50:282:24:517:1510:28
7:42
0:00
21M
21.00 mi13:00:102:34:337:229:42
9:42
+2:00
35K
21.75 mi13:05:582:40:217:225:48
7:45
-1:57
23M
23.00 mi13:17:132:51:367:2811:15
8:59
+1:14
24M
24.00 mi13:25:212:59:447:298:08
8:08
-0:51
40K
24.85 mi13:32:273:06:507:317:06
8:18
+0:10
25.2M
25.20 mi13:35:323:09:557:323:05
8:56
+0:38
Finish
26.22 mi13:43:483:18:117:348:16
8:07
-0:49

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

6:57 /mi

Average Pace

7:34 /mi

Slowest Pace

9:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:29

47% of race

Time at Steady Pace

58:10

29% of race

Time at Slower Pace

47:32

24% of race

Average Pace: 7:34 /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 mi10:47:5922:227:1222:22
7:12
#7490
10K
6.21 mi11:09:3643:597:0521:37
6:57
#6974
15K
9.32 mi11:31:171:05:407:0321:41
6:59
#6758
20K
12.43 mi11:53:171:27:407:0322:00
7:05
#6664
Half
13.11 mi11:58:061:32:297:034:49
7:04
#6671
25K
15.53 mi12:16:041:50:277:0717:58
7:25
#6827
30K
18.64 mi12:40:002:14:237:1323:56
7:42
#7038
20M
20.00 mi12:50:282:24:517:1510:28
7:42
#7063
21M
21.00 mi13:00:102:34:337:229:42
9:42
#7594
35K
21.75 mi13:05:582:40:217:225:48
7:45
#7650
23M
23.00 mi13:17:132:51:367:2811:15
8:59
#8155
24M
24.00 mi13:25:212:59:447:298:08
8:08
#8327
40K
24.85 mi13:32:273:06:507:317:06
8:18
#8442
25.2M
25.20 mi13:35:323:09:557:323:05
8:56
#8502
Finish
26.22 mi13:43:483:18:117:348:16
8:07
#8651
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7490664266426437(Top 24%)5806(Top 38%)5806(Top 259%)
10K6.21 mi3.10 mi6974+5166242+4006242+4006545(Top 25%)5895(Top 39%)5895(Top 263%)
15K9.32 mi3.11 mi6758+2166073+1696073+1696437(Top 24%)5806(Top 38%)5806(Top 259%)
20K12.43 mi3.11 mi6664+945985+885985+886456(Top 24%)5810(Top 38%)5810(Top 259%)
Half13.11 mi0.68 mi6671-75992-75992-76936(Top 26%)6193(Top 41%)6193(Top 276%)
25K15.53 mi2.42 mi6827-1566107-1156107-1158102(Top 30%)6873(Top 45%)6873(Top 307%)
30K18.64 mi3.11 mi7038-2116243-1366243-1368655(Top 33%)7072(Top 47%)7072(Top 316%)
20M20.00 mi1.36 mi7063-256253-106253-108195(Top 31%)6718(Top 44%)6718(Top 300%)
21M21.00 mi1.00 mi7594-5316581-3286581-32816819(Top 63%)10707(Top 71%)10707(Top 478%)
35K21.75 mi0.75 mi7650-566615-346615-3410252(Top 39%)7745(Top 51%)7745(Top 346%)
23M23.00 mi1.25 mi8155-5056901-2866901-28615956(Top 60%)10214(Top 67%)10214(Top 456%)
24M24.00 mi1.00 mi8327-1726994-936994-9312112(Top 45%)8438(Top 56%)8438(Top 377%)
40K24.85 mi0.85 mi8442-1157043-497043-4912013(Top 45%)8310(Top 55%)8310(Top 371%)
25.2M25.20 mi0.35 mi8502-607075-327075-3212082(Top 45%)8276(Top 55%)8276(Top 369%)
Finish26.22 mi1.02 mi8651-1497135-607135-6012822(Top 48%)8676(Top 57%)8676(Top 387%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6437

Males

5806

M40-44

5806

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6545

Males

5895

M40-44

5895

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6437

Males

5806

M40-44

5806

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6456

Males

5810

M40-44

5810

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

6936

Males

6193

M40-44

6193

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8102

Males

6873

M40-44

6873

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

8655

Males

7072

M40-44

7072

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8195

Males

6718

M40-44

6718

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16819

Males

10707

M40-44

10707

21M→35K

21.0 - 21.8 mi

Top 39%
×7stories
+17ft-86ft

Overall

10252

Males

7745

M40-44

7745

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15956

Males

10214

M40-44

10214

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12112

Males

8438

M40-44

8438

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12013

Males

8310

M40-44

8310

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12082

Males

8276

M40-44

8276

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12822

Males

8676

M40-44

8676

Passing Analysis

Category:
Athletes Passed
1279
Passed By
2440
Net Change
-1161
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7490
5K → 10K56145+516#7490#6974
10K → 15K26448+216#6974#6758
15K → 20K15359+94#6758#6664
20K → Half1522-7#6664#6671
Half → 25K39195-156#6671#6827
25K → 30K61272-211#6827#7038
30K → 20M4974-25#7038#7063
20M → 21M3534-531#7063#7594
21M → 35K2379-56#7594#7650
35K → 23M15520-505#7650#8155
23M → 24M28200-172#8155#8327
24M → 40K29144-115#8327#8442
40K → 25.2M1474-60#8442#8502
25.2M → Finish25174-149#8502#8651
TOTALS12792440-1161
📊

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