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BOSTON MARATHON 2023

Cc Lee

Bib: 10630•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 44%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 48%
Division (M55-59)
#0 / 1422
Top 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:12:37
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:37:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:42:14
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
2:01:11
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:26:02
↑ 181↓ 1480.2%
20M
7:58/mi
2:36:52
↑ 64↓ 500.2%
21M
8:34/mi
2:45:26
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:51:19
↑ 17↓ 861.7%
23M
8:12/mi
3:01:35
↑ 23↓ 630.6%
24M
8:06/mi
3:09:41
↓ 821.3%
40K· 24.85 mi
8:19/mi
3:16:48
↓ 200.3%
25.2M
9:02/mi
3:19:55
↑ 13↓ 160.2%
Finish· 26.22 mi
8:03/mi
3:28:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:14
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:45:53
Pace8:05 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0824:377:5524:37
7:55
-
10K
6.21 mi11:15:0548:347:4923:57
7:43
-0:12
15K
9.32 mi11:39:081:12:377:4724:03
7:44
+0:01
20K
12.43 mi12:03:311:37:007:4824:23
7:51
+0:07
Half
13.11 mi12:08:451:42:147:485:14
7:40
-0:11
25K
15.53 mi12:27:422:01:117:4818:57
7:49
+0:09
30K
18.64 mi12:52:332:26:027:5024:51
8:00
+0:11
20M
20.00 mi13:03:232:36:527:5110:50
7:58
-0:02
21M
21.00 mi13:11:572:45:267:538:34
8:34
+0:36
35K
21.75 mi13:17:502:51:197:535:53
7:52
-0:42
23M
23.00 mi13:28:063:01:357:5410:16
8:12
+0:20
24M
24.00 mi13:36:123:09:417:548:06
8:06
-0:06
40K
24.85 mi13:43:193:16:487:557:07
8:19
+0:13
25.2M
25.20 mi13:46:263:19:557:563:07
9:02
+0:43
Finish
26.22 mi13:54:383:28:077:578:12
8:03
-0:59

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

7:40 /mi

Average Pace

7:57 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:26

94% of race

Time at Steady Pace

11:41

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:56 /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 mi10:51:0824:377:5524:37
7:55
#13428
10K
6.21 mi11:15:0548:347:4923:57
7:43
#12841
15K
9.32 mi11:39:081:12:377:4724:03
7:44
#12588
20K
12.43 mi12:03:311:37:007:4824:23
7:51
#12443
Half
13.11 mi12:08:451:42:147:485:14
7:40
#12389
25K
15.53 mi12:27:422:01:117:4818:57
7:49
#12180
30K
18.64 mi12:52:332:26:027:5024:51
8:00
#11875
20M
20.00 mi13:03:232:36:527:5110:50
7:58
#11737
21M
21.00 mi13:11:572:45:267:538:34
8:34
#11668
35K
21.75 mi13:17:502:51:197:535:53
7:52
#11646
23M
23.00 mi13:28:063:01:357:5410:16
8:12
#11604
24M
24.00 mi13:36:123:09:417:548:06
8:06
#11609
40K
24.85 mi13:43:193:16:487:557:07
8:19
#11629
25.2M
25.20 mi13:46:263:19:557:563:07
9:02
#11648
Finish
26.22 mi13:54:383:28:077:578:12
8:03
#11656
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi134289726972612194(Top 46%)9166(Top 60%)9166(Top 645%)
10K6.21 mi3.10 mi12841+5879482+2449482+24412314(Top 46%)9247(Top 61%)9247(Top 650%)
15K9.32 mi3.11 mi12588+2539346+1369346+13612194(Top 46%)9166(Top 60%)9166(Top 645%)
20K12.43 mi3.11 mi12443+1459255+919255+9112134(Top 46%)9069(Top 60%)9069(Top 638%)
Half13.11 mi0.68 mi12389+549227+289227+2811578(Top 43%)8891(Top 59%)8891(Top 625%)
25K15.53 mi2.42 mi12180+2099123+1049123+10411207(Top 42%)8597(Top 57%)8597(Top 605%)
30K18.64 mi3.11 mi11875+3058950+1738950+17310903(Top 41%)8305(Top 55%)8305(Top 584%)
20M20.00 mi1.36 mi11737+1388875+758875+7510061(Top 38%)7794(Top 51%)7794(Top 548%)
21M21.00 mi1.00 mi11668+698827+488827+4810857(Top 41%)8054(Top 53%)8054(Top 566%)
35K21.75 mi0.75 mi11646+228807+208807+2011091(Top 42%)8160(Top 54%)8160(Top 574%)
23M23.00 mi1.25 mi11604+428760+478760+4711177(Top 42%)8060(Top 53%)8060(Top 567%)
24M24.00 mi1.00 mi11609-58744+168744+1611913(Top 45%)8354(Top 55%)8354(Top 587%)
40K24.85 mi0.85 mi11629-208737+78737+712185(Top 46%)8395(Top 55%)8395(Top 590%)
25.2M25.20 mi0.35 mi11648-198730+78730+712678(Top 48%)8591(Top 57%)8591(Top 604%)
Finish26.22 mi1.02 mi11656-88704+268704+2612416(Top 47%)8484(Top 56%)8484(Top 597%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12194

Males

9166

M55-59

9166

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12314

Males

9247

M55-59

9247

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12194

Males

9166

M55-59

9166

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12134

Males

9069

M55-59

9069

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

11578

Males

8891

M55-59

8891

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11207

Males

8597

M55-59

8597

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10903

Males

8305

M55-59

8305

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10061

Males

7794

M55-59

7794

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10857

Males

8054

M55-59

8054

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11091

Males

8160

M55-59

8160

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11177

Males

8060

M55-59

8060

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

11913

Males

8354

M55-59

8354

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12185

Males

8395

M55-59

8395

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12678

Males

8591

M55-59

8591

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12416

Males

8484

M55-59

8484

Passing Analysis

Category:
Athletes Passed
2650
Passed By
878
Net Change
+1772
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13428
5K → 10K694107+587#13428#12841
10K → 15K353100+253#12841#12588
15K → 20K251106+145#12588#12443
20K → Half617+54#12443#12389
Half → 25K24536+209#12389#12180
25K → 30K36156+305#12180#11875
30K → 20M16830+138#11875#11737
20M → 21M12354+69#11737#11668
21M → 35K5937+22#11668#11646
35K → 23M11573+42#11646#11604
23M → 24M6469-5#11604#11609
24M → 40K5272-20#11609#11629
40K → 25.2M2645-19#11629#11648
25.2M → Finish7886-8#11648#11656
TOTALS2650878+1772
📊

Passing Visuals

Category:
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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