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BOSTON MARATHON 2023

Daniel Lee

Bib: 2838•M

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Division (M18-39)
#0 / 5285
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:30
Rank: #2849
Start → 5K
20:30 | 6:36/mi
10K· 6.21 mi
40:39
Rank: #2752 (+97)
5K → 10K
20:09 | 6:29/mi
15K· 9.32 mi
1:00:51
Rank: #2690 (+62)
10K → 15K
20:12 | 6:30/mi
20K· 12.43 mi
1:21:01
Rank: #2564 (+126)
15K → 20K
20:10 | 6:29/mi
Half· 13.11 mi
1:25:26
Rank: #2563 (+1)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:41:18
Rank: #2522 (+41)
Half → 25K
15:52 | 6:33/mi
30K· 18.64 mi
2:02:35
Rank: #2610 (-88)
25K → 30K
21:17 | 6:51/mi
20M
2:11:56
Rank: #2633 (-23)
30K → 20M
9:21 | 6:53/mi
21M
2:19:26
Rank: #2678 (-45)
20M → 21M
7:30 | 7:30/mi
35K· 21.75 mi
2:24:30
Rank: #2708 (-30)
21M → 35K
5:04 | 6:46/mi
23M
2:33:35
Rank: #2836 (-128)
35K → 23M
9:05 | 7:15/mi
24M
2:40:49
Rank: #2984 (-148)
23M → 24M
7:14 | 7:14/mi
40K· 24.85 mi
2:47:15
Rank: #3115 (-131)
24M → 40K
6:26 | 7:31/mi
25.2M
2:50:04
Rank: #3188 (-73)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
2:57:18
Rank: #3275 (-87)
25.2M → Finish
7:14 | 7:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:26
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:31:52
Pace7:00 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2220:306:3620:30
6:36
-
10K
6.21 mi10:41:3140:396:3320:09
6:29
-0:07
15K
9.32 mi11:01:431:00:516:3220:12
6:30
+0:01
20K
12.43 mi11:21:531:21:016:3120:10
6:29
-0:01
Half
13.11 mi11:26:181:25:266:314:25
6:28
-0:01
25K
15.53 mi11:42:101:41:186:3115:52
6:33
+0:05
30K
18.64 mi12:03:272:02:356:3521:17
6:51
+0:18
20M
20.00 mi12:12:482:11:566:369:21
6:53
+0:02
21M
21.00 mi12:20:182:19:266:387:30
7:30
+0:37
35K
21.75 mi12:25:222:24:306:395:04
6:46
-0:44
23M
23.00 mi12:34:272:33:356:419:05
7:15
+0:29
24M
24.00 mi12:41:412:40:496:427:14
7:14
-0:01
40K
24.85 mi12:48:072:47:156:446:26
7:31
+0:17
25.2M
25.20 mi12:50:562:50:046:452:49
8:10
+0:39
Finish
26.22 mi12:58:102:57:186:467:14
7:06
-1:04

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

6:28 /mi

Average Pace

6:46 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:18

57% of race

Time at Steady Pace

35:42

20% of race

Time at Slower Pace

40:18

23% of race

Average Pace: 6:46 /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 mi10:21:2220:306:3620:30
6:36
#2849
10K
6.21 mi10:41:3140:396:3320:09
6:29
#2752
15K
9.32 mi11:01:431:00:516:3220:12
6:30
#2690
20K
12.43 mi11:21:531:21:016:3120:10
6:29
#2564
Half
13.11 mi11:26:181:25:266:314:25
6:28
#2563
25K
15.53 mi11:42:101:41:186:3115:52
6:33
#2522
30K
18.64 mi12:03:272:02:356:3521:17
6:51
#2610
20M
20.00 mi12:12:482:11:566:369:21
6:53
#2633
21M
21.00 mi12:20:182:19:266:387:30
7:30
#2678
35K
21.75 mi12:25:222:24:306:395:04
6:46
#2708
23M
23.00 mi12:34:272:33:356:419:05
7:15
#2836
24M
24.00 mi12:41:412:40:496:427:14
7:14
#2984
40K
24.85 mi12:48:072:47:156:446:26
7:31
#3115
25.2M
25.20 mi12:50:562:50:046:452:49
8:10
#3188
Finish
26.22 mi12:58:102:57:186:467:14
7:06
#3275
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2849271227122647(Top 10%)2532(Top 17%)2532(Top 48%)
10K6.21 mi3.10 mi2752+972624+882624+882708(Top 10%)2590(Top 17%)2590(Top 49%)
15K9.32 mi3.11 mi2690+622569+552569+552647(Top 10%)2532(Top 17%)2532(Top 48%)
20K12.43 mi3.11 mi2564+1262453+1162453+1162239(Top 8%)2149(Top 14%)2149(Top 41%)
Half13.11 mi0.68 mi2563+12455-22455-22660(Top 10%)2554(Top 17%)2554(Top 48%)
25K15.53 mi2.42 mi2522+412415+402415+402405(Top 9%)2304(Top 15%)2304(Top 44%)
30K18.64 mi3.11 mi2610-882492-772492-773313(Top 12%)3121(Top 21%)3121(Top 59%)
20M20.00 mi1.36 mi2633-232516-242516-243283(Top 12%)3072(Top 20%)3072(Top 58%)
21M21.00 mi1.00 mi2678-452559-432559-434543(Top 17%)4130(Top 27%)4130(Top 78%)
35K21.75 mi0.75 mi2708-302588-292588-293970(Top 15%)3645(Top 24%)3645(Top 69%)
23M23.00 mi1.25 mi2836-1282702-1142702-1145039(Top 19%)4488(Top 30%)4488(Top 85%)
24M24.00 mi1.00 mi2984-1482835-1332835-1335896(Top 22%)5026(Top 33%)5026(Top 95%)
40K24.85 mi0.85 mi3115-1312951-1162951-1166817(Top 26%)5515(Top 36%)5515(Top 104%)
25.2M25.20 mi0.35 mi3188-733018-673018-677371(Top 28%)5771(Top 38%)5771(Top 109%)
Finish26.22 mi1.02 mi3275-873097-793097-795780(Top 22%)4772(Top 31%)4772(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2647

Males

2532

M18-39

2532

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2708

Males

2590

M18-39

2590

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2647

Males

2532

M18-39

2532

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2239

Males

2149

M18-39

2149

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2660

Males

2554

M18-39

2554

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2405

Males

2304

M18-39

2304

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3313

Males

3121

M18-39

3121

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3283

Males

3072

M18-39

3072

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4543

Males

4130

M18-39

4130

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3970

Males

3645

M18-39

3645

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5039

Males

4488

M18-39

4488

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5896

Males

5026

M18-39

5026

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6817

Males

5515

M18-39

5515

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7371

Males

5771

M18-39

5771

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5780

Males

4772

M18-39

4772

Passing Analysis

Category:
Athletes Passed
737
Passed By
1163
Net Change
-426
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2849
5K → 10K209112+97#2849#2752
10K → 15K11149+62#2752#2690
15K → 20K14418+126#2690#2564
20K → Half1110+1#2564#2563
Half → 25K7130+41#2563#2522
25K → 30K44132-88#2522#2610
30K → 20M3356-23#2610#2633
20M → 21M2166-45#2633#2678
21M → 35K1646-30#2678#2708
35K → 23M21149-128#2708#2836
23M → 24M12160-148#2836#2984
24M → 40K18149-131#2984#3115
40K → 25.2M477-73#3115#3188
25.2M → Finish22109-87#3188#3275
TOTALS7371163-426
📊

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