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BOSTON MARATHON 2023

Eric Chen

Bib: 3256•M

MN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 45%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:25
Rank: #17567
Start → 5K
26:25 | 8:30/mi
10K· 6.21 mi
52:23
Rank: #17409 (+158)
5K → 10K
25:58 | 8:21/mi
15K· 9.32 mi
1:17:21
Rank: #16502 (+907)
10K → 15K
24:58 | 8:02/mi
20K· 12.43 mi
1:43:06
Rank: #16250 (+252)
15K → 20K
25:45 | 8:17/mi
Half· 13.11 mi
1:48:25
Rank: #16054 (+196)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:07:38
Rank: #15467 (+587)
Half → 25K
19:13 | 7:56/mi
30K· 18.64 mi
2:32:37
Rank: #14706 (+761)
25K → 30K
24:59 | 8:02/mi
20M
2:43:14
Rank: #14292 (+414)
30K → 20M
10:37 | 7:49/mi
21M
2:51:08
Rank: #13833 (+459)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:56:30
Rank: #13528 (+305)
21M → 35K
5:22 | 7:10/mi
23M
3:05:53
Rank: #13057 (+471)
35K → 23M
9:23 | 7:30/mi
24M
3:13:09
Rank: #12745 (+312)
23M → 24M
7:16 | 7:16/mi
40K· 24.85 mi
3:19:11
Rank: #12397 (+348)
24M → 40K
6:02 | 7:03/mi
25.2M
3:21:49
Rank: #12248 (+149)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
3:28:55
Rank: #11933 (+315)
25.2M → Finish
7:06 | 6:58/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:48:25
Pace8:16 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:40:30
Pace7:40 /mi
📊Negative Split: 7.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:3526:258:3026:25
8:30
-
10K
6.21 mi11:45:3352:238:2625:58
8:21
-0:09
15K
9.32 mi12:10:311:17:218:1824:58
8:02
-0:19
20K
12.43 mi12:36:161:43:068:1825:45
8:17
+0:15
Half
13.11 mi12:41:351:48:258:165:19
7:48
-0:29
25K
15.53 mi13:00:482:07:388:1319:13
7:56
+0:08
30K
18.64 mi13:25:472:32:378:1124:59
8:02
+0:06
20M
20.00 mi13:36:242:43:148:1010:37
7:49
-0:13
21M
21.00 mi13:44:182:51:088:097:54
7:54
+0:05
35K
21.75 mi13:49:402:56:308:075:22
7:10
-0:44
23M
23.00 mi13:59:033:05:538:059:23
7:30
+0:20
24M
24.00 mi14:06:193:13:098:037:16
7:16
-0:14
40K
24.85 mi14:12:213:19:118:016:02
7:03
-0:13
25.2M
25.20 mi14:14:593:21:498:012:38
7:38
+0:35
Finish
26.22 mi14:22:053:28:557:587:06
6:58
-0:40

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

6:58 /mi

Average Pace

7:58 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

35:09

17% of race

Time at Steady Pace

1:35:38

46% of race

Time at Slower Pace

1:18:08

37% of race

Average Pace: 7:58 /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 mi11:19:3526:258:3026:25
8:30
#17567
10K
6.21 mi11:45:3352:238:2625:58
8:21
#17409
15K
9.32 mi12:10:311:17:218:1824:58
8:02
#16502
20K
12.43 mi12:36:161:43:068:1825:45
8:17
#16250
Half
13.11 mi12:41:351:48:258:165:19
7:48
#16054
25K
15.53 mi13:00:482:07:388:1319:13
7:56
#15467
30K
18.64 mi13:25:472:32:378:1124:59
8:02
#14706
20M
20.00 mi13:36:242:43:148:1010:37
7:49
#14292
21M
21.00 mi13:44:182:51:088:097:54
7:54
#13833
35K
21.75 mi13:49:402:56:308:075:22
7:10
#13528
23M
23.00 mi13:59:033:05:538:059:23
7:30
#13057
24M
24.00 mi14:06:193:13:098:037:16
7:16
#12745
40K
24.85 mi14:12:213:19:118:016:02
7:03
#12397
25.2M
25.20 mi14:14:593:21:498:012:38
7:38
#12248
Finish
26.22 mi14:22:053:28:557:587:06
6:58
#11933
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17567112471124714673(Top 55%)10160(Top 67%)10160(Top 192%)
10K6.21 mi3.10 mi17409+15811218+2911218+2917276(Top 65%)11206(Top 74%)11206(Top 212%)
15K9.32 mi3.11 mi16502+90710886+33210886+33214673(Top 55%)10160(Top 67%)10160(Top 192%)
20K12.43 mi3.11 mi16250+25210776+11010776+11015525(Top 58%)10457(Top 69%)10457(Top 198%)
Half13.11 mi0.68 mi16054+19610693+8310693+8312590(Top 47%)9315(Top 61%)9315(Top 176%)
25K15.53 mi2.42 mi15467+58710439+25410439+25412089(Top 45%)8941(Top 59%)8941(Top 169%)
30K18.64 mi3.11 mi14706+76110128+31110128+31111224(Top 42%)8462(Top 56%)8462(Top 160%)
20M20.00 mi1.36 mi14292+4149920+2089920+2088969(Top 34%)7183(Top 47%)7183(Top 136%)
21M21.00 mi1.00 mi13833+4599742+1789742+1786744(Top 25%)5713(Top 38%)5713(Top 108%)
35K21.75 mi0.75 mi13528+3059610+1329610+1326387(Top 24%)5515(Top 36%)5515(Top 104%)
23M23.00 mi1.25 mi13057+4719383+2279383+2276395(Top 24%)5445(Top 36%)5445(Top 103%)
24M24.00 mi1.00 mi12745+3129231+1529231+1526157(Top 23%)5204(Top 34%)5204(Top 98%)
40K24.85 mi0.85 mi12397+3489068+1639068+1634169(Top 16%)3730(Top 25%)3730(Top 71%)
25.2M25.20 mi0.35 mi12248+1498991+778991+774611(Top 17%)4024(Top 27%)4024(Top 76%)
Finish26.22 mi1.02 mi11933+3158832+1598832+1595028(Top 19%)4299(Top 28%)4299(Top 81%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14673

Males

10160

M18-39

10160

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

17276

Males

11206

M18-39

11206

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14673

Males

10160

M18-39

10160

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15525

Males

10457

M18-39

10457

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

12590

Males

9315

M18-39

9315

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

12089

Males

8941

M18-39

8941

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11224

Males

8462

M18-39

8462

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

8969

Males

7183

M18-39

7183

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6744

Males

5713

M18-39

5713

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6387

Males

5515

M18-39

5515

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6395

Males

5445

M18-39

5445

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6157

Males

5204

M18-39

5204

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4169

Males

3730

M18-39

3730

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4611

Males

4024

M18-39

4024

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5028

Males

4299

M18-39

4299

Passing Analysis

Category:
Athletes Passed
5961
Passed By
327
Net Change
+5634
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17567
5K → 10K406248+158#17567#17409
10K → 15K92518+907#17409#16502
15K → 20K30553+252#16502#16250
20K → Half1971+196#16250#16054
Half → 25K5881+587#16054#15467
25K → 30K7665+761#15467#14706
30K → 20M4140+414#14706#14292
20M → 21M4590+459#14292#13833
21M → 35K3050+305#13833#13528
35K → 23M4710+471#13528#13057
23M → 24M3131+312#13057#12745
24M → 40K3480+348#12745#12397
40K → 25.2M1490+149#12397#12248
25.2M → Finish3150+315#12248#11933
TOTALS5961327+5634
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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