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BOSTON MARATHON 2023

Brian Lee

Bib: 1189•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:47
Rank: #1671
Start → 5K
19:47 | 6:22/mi
10K· 6.21 mi
39:11
Rank: #1586 (+85)
5K → 10K
19:24 | 6:15/mi
15K· 9.32 mi
58:51
Rank: #1644 (-58)
10K → 15K
19:40 | 6:20/mi
20K· 12.43 mi
1:18:36
Rank: #1630 (+14)
15K → 20K
19:45 | 6:21/mi
Half· 13.11 mi
1:22:52
Rank: #1625 (+5)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:38:11
Rank: #1566 (+59)
Half → 25K
15:19 | 6:19/mi
30K· 18.64 mi
1:57:55
Rank: #1442 (+124)
25K → 30K
19:44 | 6:21/mi
20M
2:06:20
Rank: #1351 (+91)
30K → 20M
8:25 | 6:12/mi
21M
2:12:45
Rank: #1272 (+79)
20M → 21M
6:25 | 6:25/mi
35K· 21.75 mi
2:17:17
Rank: #1234 (+38)
21M → 35K
4:32 | 6:04/mi
23M
2:25:12
Rank: #1188 (+46)
35K → 23M
7:55 | 6:19/mi
24M
2:31:26
Rank: #1171 (+17)
23M → 24M
6:14 | 6:14/mi
40K· 24.85 mi
2:36:53
Rank: #1154 (+17)
24M → 40K
5:27 | 6:22/mi
25.2M
2:39:09
Rank: #1144 (+10)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:45:06
Rank: #1094 (+50)
25.2M → Finish
5:57 | 5:50/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:22:52
Pace6:19 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:22:14
Pace6:16 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1519:476:2219:47
6:22
-
10K
6.21 mi10:39:3939:116:1819:24
6:15
-0:07
15K
9.32 mi10:59:1958:516:1919:40
6:20
+0:05
20K
12.43 mi11:19:041:18:366:1919:45
6:21
+0:01
Half
13.11 mi11:23:201:22:526:194:16
6:15
-0:06
25K
15.53 mi11:38:391:38:116:1915:19
6:19
+0:04
30K
18.64 mi11:58:231:57:556:2019:44
6:21
+0:02
20M
20.00 mi12:06:482:06:206:198:25
6:12
-0:09
21M
21.00 mi12:13:132:12:456:196:25
6:25
+0:13
35K
21.75 mi12:17:452:17:176:194:32
6:04
-0:21
23M
23.00 mi12:25:402:25:126:197:55
6:19
+0:15
24M
24.00 mi12:31:542:31:266:196:14
6:14
-0:05
40K
24.85 mi12:37:212:36:536:195:27
6:22
+0:08
25.2M
25.20 mi12:39:372:39:096:192:16
6:34
+0:12
Finish
26.22 mi12:45:342:45:066:185:57
5:50
-0:44

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

5:50 /mi

Average Pace

6:18 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:50

99% of race

Time at Steady Pace

2:16

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:18 /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 mi10:20:1519:476:2219:47
6:22
#1671
10K
6.21 mi10:39:3939:116:1819:24
6:15
#1586
15K
9.32 mi10:59:1958:516:1919:40
6:20
#1644
20K
12.43 mi11:19:041:18:366:1919:45
6:21
#1630
Half
13.11 mi11:23:201:22:526:194:16
6:15
#1625
25K
15.53 mi11:38:391:38:116:1915:19
6:19
#1566
30K
18.64 mi11:58:231:57:556:2019:44
6:21
#1442
20M
20.00 mi12:06:482:06:206:198:25
6:12
#1351
21M
21.00 mi12:13:132:12:456:196:25
6:25
#1272
35K
21.75 mi12:17:452:17:176:194:32
6:04
#1234
23M
23.00 mi12:25:402:25:126:197:55
6:19
#1188
24M
24.00 mi12:31:542:31:266:196:14
6:14
#1171
40K
24.85 mi12:37:212:36:536:195:27
6:22
#1154
25.2M
25.20 mi12:39:372:39:096:192:16
6:34
#1144
Finish
26.22 mi12:45:342:45:066:185:57
5:50
#1094
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1671159215921773(Top 7%)1697(Top 11%)1697(Top 32%)
10K6.21 mi3.10 mi1586+851513+791513+791518(Top 6%)1451(Top 10%)1451(Top 27%)
15K9.32 mi3.11 mi1644-581571-581571-581773(Top 7%)1697(Top 11%)1697(Top 32%)
20K12.43 mi3.11 mi1630+141559+121559+121615(Top 6%)1544(Top 10%)1544(Top 29%)
Half13.11 mi0.68 mi1625+51554+51554+51559(Top 6%)1494(Top 10%)1494(Top 28%)
25K15.53 mi2.42 mi1566+591498+561498+561396(Top 5%)1333(Top 9%)1333(Top 25%)
30K18.64 mi3.11 mi1442+1241378+1201378+1201066(Top 4%)1015(Top 7%)1015(Top 19%)
20M20.00 mi1.36 mi1351+911291+871291+87646(Top 2%)609(Top 4%)609(Top 12%)
21M21.00 mi1.00 mi1272+791216+751216+75524(Top 2%)490(Top 3%)490(Top 9%)
35K21.75 mi0.75 mi1234+381179+371179+37827(Top 3%)784(Top 5%)784(Top 15%)
23M23.00 mi1.25 mi1188+461135+441135+44890(Top 3%)846(Top 6%)846(Top 16%)
24M24.00 mi1.00 mi1171+171117+181117+181116(Top 4%)1057(Top 7%)1057(Top 20%)
40K24.85 mi0.85 mi1154+171100+171100+171119(Top 4%)1058(Top 7%)1058(Top 20%)
25.2M25.20 mi0.35 mi1144+101090+101090+10623(Top 2%)590(Top 4%)590(Top 11%)
Finish26.22 mi1.02 mi1094+501041+491041+49438(Top 2%)417(Top 3%)417(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1773

Males

1697

M18-39

1697

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1518

Males

1451

M18-39

1451

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1773

Males

1697

M18-39

1697

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1615

Males

1544

M18-39

1544

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1559

Males

1494

M18-39

1494

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1396

Males

1333

M18-39

1333

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1066

Males

1015

M18-39

1015

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

646

Males

609

M18-39

609

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

524

Males

490

M18-39

490

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

827

Males

784

M18-39

784

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

890

Males

846

M18-39

846

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1116

Males

1057

M18-39

1057

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1119

Males

1058

M18-39

1058

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

623

Males

590

M18-39

590

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

438

Males

417

M18-39

417

Passing Analysis

Category:
Athletes Passed
809
Passed By
232
Net Change
+577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1671
5K → 10K13348+85#1671#1586
10K → 15K3391-58#1586#1644
15K → 20K5844+14#1644#1630
20K → Half1510+5#1630#1625
Half → 25K667+59#1625#1566
25K → 30K1328+124#1566#1442
30K → 20M921+91#1442#1351
20M → 21M790+79#1351#1272
21M → 35K402+38#1272#1234
35K → 23M515+46#1234#1188
23M → 24M258+17#1188#1171
24M → 40K247+17#1171#1154
40K → 25.2M100+10#1154#1144
25.2M → Finish511+50#1144#1094
TOTALS809232+577
📊

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