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BOSTON MARATHON 2023

Nicholas Bailey

Bib: 2655•M

NE

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 13%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:39
Rank: #1518
Start → 5K
19:39 | 6:19/mi
10K· 6.21 mi
39:04
Rank: #1512 (+6)
5K → 10K
19:25 | 6:15/mi
15K· 9.32 mi
58:28
Rank: #1454 (+58)
10K → 15K
19:24 | 6:15/mi
20K· 12.43 mi
1:18:07
Rank: #1449 (+5)
15K → 20K
19:39 | 6:19/mi
Half· 13.11 mi
1:22:17
Rank: #1417 (+32)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:37:16
Rank: #1316 (+101)
Half → 25K
14:59 | 6:11/mi
30K· 18.64 mi
1:56:33
Rank: #1177 (+139)
25K → 30K
19:17 | 6:12/mi
20M
2:04:58
Rank: #1108 (+69)
30K → 20M
8:25 | 6:12/mi
21M
2:11:22
Rank: #1053 (+55)
20M → 21M
6:24 | 6:24/mi
35K· 21.75 mi
2:15:43
Rank: #1007 (+46)
21M → 35K
4:21 | 5:49/mi
23M
2:23:28
Rank: #965 (+42)
35K → 23M
7:45 | 6:11/mi
24M
2:29:25
Rank: #924 (+41)
23M → 24M
5:57 | 5:57/mi
40K· 24.85 mi
2:34:39
Rank: #904 (+20)
24M → 40K
5:14 | 6:07/mi
25.2M
2:36:56
Rank: #890 (+14)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:42:53
Rank: #848 (+42)
25.2M → Finish
5:57 | 5:50/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:22:17
Pace6:17 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:20:36
Pace6:09 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1519:396:1919:39
6:19
-
10K
6.21 mi10:39:4039:046:1719:25
6:15
-0:04
15K
9.32 mi10:59:0458:286:1619:24
6:15
0:00
20K
12.43 mi11:18:431:18:076:1719:39
6:19
+0:04
Half
13.11 mi11:22:531:22:176:174:10
6:06
-0:13
25K
15.53 mi11:37:521:37:166:1614:59
6:11
+0:05
30K
18.64 mi11:57:091:56:336:1519:17
6:12
+0:01
20M
20.00 mi12:05:342:04:586:158:25
6:12
0:00
21M
21.00 mi12:11:582:11:226:156:24
6:24
+0:12
35K
21.75 mi12:16:192:15:436:144:21
5:49
-0:35
23M
23.00 mi12:24:042:23:286:147:45
6:11
+0:22
24M
24.00 mi12:30:012:29:256:145:57
5:57
-0:14
40K
24.85 mi12:35:152:34:396:135:14
6:07
+0:10
25.2M
25.20 mi12:37:322:36:566:142:17
6:37
+0:30
Finish
26.22 mi12:43:292:42:536:135:57
5:50
-0:47

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

5:49 /mi

Average Pace

6:13 /mi

Slowest Pace

6:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:12

95% of race

Time at Steady Pace

8:41

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:13 /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 mi10:20:1519:396:1919:39
6:19
#1518
10K
6.21 mi10:39:4039:046:1719:25
6:15
#1512
15K
9.32 mi10:59:0458:286:1619:24
6:15
#1454
20K
12.43 mi11:18:431:18:076:1719:39
6:19
#1449
Half
13.11 mi11:22:531:22:176:174:10
6:06
#1417
25K
15.53 mi11:37:521:37:166:1614:59
6:11
#1316
30K
18.64 mi11:57:091:56:336:1519:17
6:12
#1177
20M
20.00 mi12:05:342:04:586:158:25
6:12
#1108
21M
21.00 mi12:11:582:11:226:156:24
6:24
#1053
35K
21.75 mi12:16:192:15:436:144:21
5:49
#1007
23M
23.00 mi12:24:042:23:286:147:45
6:11
#965
24M
24.00 mi12:30:012:29:256:145:57
5:57
#924
40K
24.85 mi12:35:152:34:396:135:14
6:07
#904
25.2M
25.20 mi12:37:322:36:566:142:17
6:37
#890
Finish
26.22 mi12:43:292:42:536:135:57
5:50
#848
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1518144514451395(Top 5%)1328(Top 9%)1328(Top 25%)
10K6.21 mi3.10 mi1512+61442+31442+31539(Top 6%)1471(Top 10%)1471(Top 28%)
15K9.32 mi3.11 mi1454+581387+551387+551395(Top 5%)1328(Top 9%)1328(Top 25%)
20K12.43 mi3.11 mi1449+51382+51382+51483(Top 6%)1417(Top 9%)1417(Top 27%)
Half13.11 mi0.68 mi1417+321350+321350+321018(Top 4%)970(Top 6%)970(Top 18%)
25K15.53 mi2.42 mi1316+1011256+941256+94944(Top 4%)896(Top 6%)896(Top 17%)
30K18.64 mi3.11 mi1177+1391122+1341122+134697(Top 3%)660(Top 4%)660(Top 12%)
20M20.00 mi1.36 mi1108+691056+661056+66642(Top 2%)605(Top 4%)605(Top 11%)
21M21.00 mi1.00 mi1053+551002+541002+54495(Top 2%)461(Top 3%)461(Top 9%)
35K21.75 mi0.75 mi1007+46957+45957+45402(Top 2%)373(Top 2%)373(Top 7%)
23M23.00 mi1.25 mi965+42918+39918+39601(Top 2%)567(Top 4%)567(Top 11%)
24M24.00 mi1.00 mi924+41877+41877+41462(Top 2%)435(Top 3%)435(Top 8%)
40K24.85 mi0.85 mi904+20857+20857+20524(Top 2%)495(Top 3%)495(Top 9%)
25.2M25.20 mi0.35 mi890+14843+14843+14695(Top 3%)660(Top 4%)660(Top 12%)
Finish26.22 mi1.02 mi848+42803+40803+40435(Top 2%)414(Top 3%)414(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1395

Males

1328

M18-39

1328

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1539

Males

1471

M18-39

1471

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1395

Males

1328

M18-39

1328

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1483

Males

1417

M18-39

1417

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1018

Males

970

M18-39

970

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

944

Males

896

M18-39

896

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

697

Males

660

M18-39

660

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

642

Males

605

M18-39

605

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

495

Males

461

M18-39

461

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

402

Males

373

M18-39

373

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

601

Males

567

M18-39

567

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

462

Males

435

M18-39

435

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

524

Males

495

M18-39

495

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

695

Males

660

M18-39

660

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

435

Males

414

M18-39

414

Passing Analysis

Category:
Athletes Passed
823
Passed By
153
Net Change
+670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1518
5K → 10K8175+6#1518#1512
10K → 15K8325+58#1512#1454
15K → 20K4742+5#1454#1449
20K → Half331+32#1449#1417
Half → 25K1010+101#1417#1316
25K → 30K1401+139#1316#1177
30K → 20M701+69#1177#1108
20M → 21M572+55#1108#1053
21M → 35K460+46#1053#1007
35K → 23M431+42#1007#965
23M → 24M410+41#965#924
24M → 40K222+20#924#904
40K → 25.2M162+14#904#890
25.2M → Finish431+42#890#848
TOTALS823153+670
📊

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