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BOSTON MARATHON 2023

Garrett Chan

Bib: 3125•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Division (M18-39)
#0 / 5285
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:29
Rank: #2805
Start → 5K
20:29 | 6:36/mi
10K· 6.21 mi
40:38
Rank: #2725 (+80)
5K → 10K
20:09 | 6:29/mi
15K· 9.32 mi
1:00:48
Rank: #2659 (+66)
10K → 15K
20:10 | 6:29/mi
20K· 12.43 mi
1:21:02
Rank: #2567 (+92)
15K → 20K
20:14 | 6:31/mi
Half· 13.11 mi
1:25:26
Rank: #2559 (+8)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:41:05
Rank: #2448 (+111)
Half → 25K
15:39 | 6:27/mi
30K· 18.64 mi
2:01:32
Rank: #2322 (+126)
25K → 30K
20:27 | 6:35/mi
20M
2:10:27
Rank: #2247 (+75)
30K → 20M
8:55 | 6:34/mi
21M
2:17:16
Rank: #2185 (+62)
20M → 21M
6:49 | 6:49/mi
35K· 21.75 mi
2:22:01
Rank: #2157 (+28)
21M → 35K
4:45 | 6:21/mi
23M
2:30:14
Rank: #2085 (+72)
35K → 23M
8:13 | 6:34/mi
24M
2:36:36
Rank: #2040 (+45)
23M → 24M
6:22 | 6:22/mi
40K· 24.85 mi
2:42:02
Rank: #1979 (+61)
24M → 40K
5:26 | 6:21/mi
25.2M
2:44:27
Rank: #1961 (+18)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:50:57
Rank: #1929 (+32)
25.2M → Finish
6:30 | 6:23/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:26
Pace6:31 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:25:31
Pace6:31 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4720:296:3620:29
6:36
-
10K
6.21 mi10:41:5640:386:3220:09
6:29
-0:07
15K
9.32 mi11:02:061:00:486:3120:10
6:29
0:00
20K
12.43 mi11:22:201:21:026:3120:14
6:31
+0:02
Half
13.11 mi11:26:441:25:266:314:24
6:27
-0:04
25K
15.53 mi11:42:231:41:056:3015:39
6:27
0:00
30K
18.64 mi12:02:502:01:326:3120:27
6:35
+0:08
20M
20.00 mi12:11:452:10:276:318:55
6:34
-0:01
21M
21.00 mi12:18:342:17:166:326:49
6:49
+0:15
35K
21.75 mi12:23:192:22:016:324:45
6:21
-0:28
23M
23.00 mi12:31:322:30:146:328:13
6:34
+0:13
24M
24.00 mi12:37:542:36:366:326:22
6:22
-0:12
40K
24.85 mi12:43:202:42:026:315:26
6:21
-0:01
25.2M
25.20 mi12:45:452:44:276:322:25
7:00
+0:39
Finish
26.22 mi12:52:152:50:576:316:30
6:23
-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

6:21 /mi

Average Pace

6:31 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:32

99% of race

Time at Steady Pace

2:25

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:31 /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 mi10:21:4720:296:3620:29
6:36
#2805
10K
6.21 mi10:41:5640:386:3220:09
6:29
#2725
15K
9.32 mi11:02:061:00:486:3120:10
6:29
#2659
20K
12.43 mi11:22:201:21:026:3120:14
6:31
#2567
Half
13.11 mi11:26:441:25:266:314:24
6:27
#2559
25K
15.53 mi11:42:231:41:056:3015:39
6:27
#2448
30K
18.64 mi12:02:502:01:326:3120:27
6:35
#2322
20M
20.00 mi12:11:452:10:276:318:55
6:34
#2247
21M
21.00 mi12:18:342:17:166:326:49
6:49
#2185
35K
21.75 mi12:23:192:22:016:324:45
6:21
#2157
23M
23.00 mi12:31:322:30:146:328:13
6:34
#2085
24M
24.00 mi12:37:542:36:366:326:22
6:22
#2040
40K
24.85 mi12:43:202:42:026:315:26
6:21
#1979
25.2M
25.20 mi12:45:452:44:276:322:25
7:00
#1961
Finish
26.22 mi12:52:152:50:576:316:30
6:23
#1929
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2805266826682579(Top 10%)2474(Top 16%)2474(Top 47%)
10K6.21 mi3.10 mi2725+802600+682600+682695(Top 10%)2577(Top 17%)2577(Top 49%)
15K9.32 mi3.11 mi2659+662540+602540+602579(Top 10%)2474(Top 16%)2474(Top 47%)
20K12.43 mi3.11 mi2567+922456+842456+842348(Top 9%)2250(Top 15%)2250(Top 43%)
Half13.11 mi0.68 mi2559+82451+52451+52443(Top 9%)2342(Top 15%)2342(Top 44%)
25K15.53 mi2.42 mi2448+1112345+1062345+1061976(Top 7%)1892(Top 12%)1892(Top 36%)
30K18.64 mi3.11 mi2322+1262226+1192226+1191886(Top 7%)1805(Top 12%)1805(Top 34%)
20M20.00 mi1.36 mi2247+752156+702156+701691(Top 6%)1614(Top 11%)1614(Top 31%)
21M21.00 mi1.00 mi2185+622094+622094+621465(Top 6%)1397(Top 9%)1397(Top 26%)
35K21.75 mi0.75 mi2157+282066+282066+281755(Top 7%)1668(Top 11%)1668(Top 32%)
23M23.00 mi1.25 mi2085+721999+671999+671654(Top 6%)1572(Top 10%)1572(Top 30%)
24M24.00 mi1.00 mi2040+451956+431956+431571(Top 6%)1487(Top 10%)1487(Top 28%)
40K24.85 mi0.85 mi1979+611895+611895+611074(Top 4%)1017(Top 7%)1017(Top 19%)
25.2M25.20 mi0.35 mi1961+181877+181877+181756(Top 7%)1649(Top 11%)1649(Top 31%)
Finish26.22 mi1.02 mi1929+321846+311846+311916(Top 7%)1787(Top 12%)1787(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2579

Males

2474

M18-39

2474

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2695

Males

2577

M18-39

2577

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2579

Males

2474

M18-39

2474

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2348

Males

2250

M18-39

2250

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2443

Males

2342

M18-39

2342

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1976

Males

1892

M18-39

1892

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1886

Males

1805

M18-39

1805

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1691

Males

1614

M18-39

1614

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1465

Males

1397

M18-39

1397

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1755

Males

1668

M18-39

1668

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1654

Males

1572

M18-39

1572

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1571

Males

1487

M18-39

1487

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1074

Males

1017

M18-39

1017

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1756

Males

1649

M18-39

1649

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1916

Males

1787

M18-39

1787

Passing Analysis

Category:
Athletes Passed
1158
Passed By
282
Net Change
+876
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2805
5K → 10K200120+80#2805#2725
10K → 15K11145+66#2725#2659
15K → 20K11927+92#2659#2567
20K → Half157+8#2567#2559
Half → 25K12615+111#2559#2448
25K → 30K14014+126#2448#2322
30K → 20M772+75#2322#2247
20M → 21M697+62#2247#2185
21M → 35K324+28#2185#2157
35K → 23M808+72#2157#2085
23M → 24M5712+45#2085#2040
24M → 40K621+61#2040#1979
40K → 25.2M235+18#1979#1961
25.2M → Finish4715+32#1961#1929
TOTALS1158282+876
📊

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