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BOSTON MARATHON 2023

Thomas Dellinger

Bib: 3211•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 5%
Division (M18-39)
#0 / 5285
Top 12%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:46
Rank: #1645
Start → 5K
19:46 | 6:22/mi
10K· 6.21 mi
39:46
Rank: #1972 (-327)
5K → 10K
20:00 | 6:26/mi
15K· 9.32 mi
59:31
Rank: #1939 (+33)
10K → 15K
19:45 | 6:21/mi
20K· 12.43 mi
1:19:04
Rank: #1763 (+176)
15K → 20K
19:33 | 6:18/mi
Half· 13.11 mi
1:23:18
Rank: #1752 (+11)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:38:31
Rank: #1665 (+87)
Half → 25K
15:13 | 6:17/mi
30K· 18.64 mi
1:57:51
Rank: #1427 (+238)
25K → 30K
19:20 | 6:13/mi
20M
2:06:03
Rank: #1301 (+126)
30K → 20M
8:12 | 6:02/mi
21M
2:12:16
Rank: #1181 (+120)
20M → 21M
6:13 | 6:13/mi
35K· 21.75 mi
2:16:35
Rank: #1118 (+63)
21M → 35K
4:19 | 5:46/mi
23M
2:23:57
Rank: #1023 (+95)
35K → 23M
7:22 | 5:53/mi
24M
2:29:39
Rank: #953 (+70)
23M → 24M
5:42 | 5:42/mi
40K· 24.85 mi
2:34:36
Rank: #890 (+63)
24M → 40K
4:57 | 5:47/mi
25.2M
2:36:41
Rank: #862 (+28)
40K → 25.2M
2:05 | 6:02/mi
Finish· 26.22 mi
2:42:12
Rank: #782 (+80)
25.2M → Finish
5:31 | 5:25/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:23:18
Pace6:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:18:54
Pace6:01 /mi
📊Negative Split: 5.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:0119:466:2219:46
6:22
-
10K
6.21 mi10:41:0139:466:2420:00
6:26
+0:04
15K
9.32 mi11:00:4659:316:2319:45
6:21
-0:05
20K
12.43 mi11:20:191:19:046:2219:33
6:18
-0:03
Half
13.11 mi11:24:331:23:186:214:14
6:12
-0:06
25K
15.53 mi11:39:461:38:316:2115:13
6:17
+0:05
30K
18.64 mi11:59:061:57:516:1919:20
6:13
-0:04
20M
20.00 mi12:07:182:06:036:188:12
6:02
-0:11
21M
21.00 mi12:13:312:12:166:186:13
6:13
+0:11
35K
21.75 mi12:17:502:16:356:174:19
5:46
-0:27
23M
23.00 mi12:25:122:23:576:167:22
5:53
+0:07
24M
24.00 mi12:30:542:29:396:145:42
5:42
-0:11
40K
24.85 mi12:35:512:34:366:134:57
5:47
+0:05
25.2M
25.20 mi12:37:562:36:416:132:05
6:02
+0:15
Finish
26.22 mi12:43:272:42:126:115:31
5:25
-0:37

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

5:25 /mi

Average Pace

6:11 /mi

Slowest Pace

6:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

27:51

17% of race

Time at Steady Pace

1:54:21

70% of race

Time at Slower Pace

20:00

12% of race

Average Pace: 6:11 /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 mi10:21:0119:466:2219:46
6:22
#1645
10K
6.21 mi10:41:0139:466:2420:00
6:26
#1972
15K
9.32 mi11:00:4659:316:2319:45
6:21
#1939
20K
12.43 mi11:20:191:19:046:2219:33
6:18
#1763
Half
13.11 mi11:24:331:23:186:214:14
6:12
#1752
25K
15.53 mi11:39:461:38:316:2115:13
6:17
#1665
30K
18.64 mi11:59:061:57:516:1919:20
6:13
#1427
20M
20.00 mi12:07:182:06:036:188:12
6:02
#1301
21M
21.00 mi12:13:312:12:166:186:13
6:13
#1181
35K
21.75 mi12:17:502:16:356:174:19
5:46
#1118
23M
23.00 mi12:25:122:23:576:167:22
5:53
#1023
24M
24.00 mi12:30:542:29:396:145:42
5:42
#953
40K
24.85 mi12:35:512:34:366:134:57
5:47
#890
25.2M
25.20 mi12:37:562:36:416:132:05
6:02
#862
Finish
26.22 mi12:43:272:42:126:115:31
5:25
#782
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1645156615661887(Top 7%)1807(Top 12%)1807(Top 34%)
10K6.21 mi3.10 mi1972-3271889-3231889-3232420(Top 9%)2315(Top 15%)2315(Top 44%)
15K9.32 mi3.11 mi1939+331856+331856+331887(Top 7%)1807(Top 12%)1807(Top 34%)
20K12.43 mi3.11 mi1763+1761686+1701686+1701335(Top 5%)1275(Top 8%)1275(Top 24%)
Half13.11 mi0.68 mi1752+111675+111675+111340(Top 5%)1280(Top 8%)1280(Top 24%)
25K15.53 mi2.42 mi1665+871593+821593+821230(Top 5%)1174(Top 8%)1174(Top 22%)
30K18.64 mi3.11 mi1427+2381363+2301363+230733(Top 3%)696(Top 5%)696(Top 13%)
20M20.00 mi1.36 mi1301+1261243+1201243+120389(Top 1%)359(Top 2%)359(Top 7%)
21M21.00 mi1.00 mi1181+1201127+1161127+116263(Top 1.0%)239(Top 2%)239(Top 5%)
35K21.75 mi0.75 mi1118+631065+621065+62333(Top 1%)307(Top 2%)307(Top 6%)
23M23.00 mi1.25 mi1023+95972+93972+93203(Top 0.8%)180(Top 1%)180(Top 3%)
24M24.00 mi1.00 mi953+70906+66906+66173(Top 0.6%)151(Top 1.0%)151(Top 3%)
40K24.85 mi0.85 mi890+63843+63843+63145(Top 0.5%)131(Top 0.9%)131(Top 2%)
25.2M25.20 mi0.35 mi862+28816+27816+2792(Top 0.3%)82(Top 0.5%)82(Top 2%)
Finish26.22 mi1.02 mi782+80738+78738+7865(Top 0.2%)57(Top 0.4%)57(Top 1%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1887

Males

1807

M18-39

1807

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2420

Males

2315

M18-39

2315

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1887

Males

1807

M18-39

1807

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1335

Males

1275

M18-39

1275

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1340

Males

1280

M18-39

1280

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1230

Males

1174

M18-39

1174

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

733

Males

696

M18-39

696

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

389

Males

359

M18-39

359

20M→21M

20.0 - 21.0 mi

Top 1.0%
×8stories
+106ft-24ft

Overall

263

Males

239

M18-39

239

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

333

Males

307

M18-39

307

35K→23M

21.8 - 23.0 mi

Top 0.8%
×5stories
+23ft-63ft

Overall

203

Males

180

M18-39

180

23M→24M

23.0 - 24.0 mi

Top 0.6%
×6stories
+12ft-82ft

Overall

173

Males

151

M18-39

151

24M→40K

24.0 - 24.9 mi

Top 0.5%
×1story
+6ft-20ft

Overall

145

Males

131

M18-39

131

40K→25.2M

24.9 - 25.2 mi

Top 0.3%
×1story
+13ft-16ft

Overall

92

Males

82

M18-39

82

25.2M→Finish

25.2 - 26.2 mi

Top 0.2%
×2stories
+22ft-21ft

Overall

65

Males

57

M18-39

57

Passing Analysis

Category:
Athletes Passed
1253
Passed By
390
Net Change
+863
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1645
5K → 10K10337-327#1645#1972
10K → 15K7542+33#1972#1939
15K → 20K1804+176#1939#1763
20K → Half176+11#1763#1752
Half → 25K881+87#1752#1665
25K → 30K2380+238#1665#1427
30K → 20M1260+126#1427#1301
20M → 21M1200+120#1301#1181
21M → 35K630+63#1181#1118
35K → 23M950+95#1118#1023
23M → 24M700+70#1023#953
24M → 40K630+63#953#890
40K → 25.2M280+28#890#862
25.2M → Finish800+80#862#782
TOTALS1253390+863
📊

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