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BOSTON MARATHON 2023

Tony Chan

Bib: 13682•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 41%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 45%
Division (M50-54)
#0 / 2052
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:08
Rank: #12048
Start → 5K
24:08 | 7:46/mi
10K· 6.21 mi
47:50
Rank: #11781 (+267)
5K → 10K
23:42 | 7:38/mi
15K· 9.32 mi
1:11:26
Rank: #11479 (+302)
10K → 15K
23:36 | 7:36/mi
20K· 12.43 mi
1:35:16
Rank: #11237 (+242)
15K → 20K
23:50 | 7:40/mi
Half· 13.11 mi
1:40:28
Rank: #11220 (+17)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:59:07
Rank: #11038 (+182)
Half → 25K
18:39 | 7:42/mi
30K· 18.64 mi
2:23:39
Rank: #10830 (+208)
25K → 30K
24:32 | 7:54/mi
20M
2:34:30
Rank: #10739 (+91)
30K → 20M
10:51 | 7:59/mi
21M
2:43:19
Rank: #10820 (-81)
20M → 21M
8:49 | 8:49/mi
35K· 21.75 mi
2:49:11
Rank: #10805 (+15)
21M → 35K
5:52 | 7:51/mi
23M
2:59:03
Rank: #10668 (+137)
35K → 23M
9:52 | 7:53/mi
24M
3:06:55
Rank: #10651 (+17)
23M → 24M
7:52 | 7:52/mi
40K· 24.85 mi
3:14:12
Rank: #10734 (-83)
24M → 40K
7:17 | 8:31/mi
25.2M
3:17:22
Rank: #10777 (-43)
40K → 25.2M
3:10 | 9:11/mi
Finish· 26.22 mi
3:25:25
Rank: #10791 (-14)
25.2M → Finish
8:03 | 7:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:28
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:44:57
Pace8:00 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3824:087:4624:08
7:46
-
10K
6.21 mi11:16:2047:507:4223:42
7:38
-0:08
15K
9.32 mi11:39:561:11:267:4023:36
7:36
-0:02
20K
12.43 mi12:03:461:35:167:4023:50
7:40
+0:04
Half
13.11 mi12:08:581:40:287:405:12
7:37
-0:03
25K
15.53 mi12:27:371:59:077:4018:39
7:42
+0:05
30K
18.64 mi12:52:092:23:397:4224:32
7:54
+0:12
20M
20.00 mi13:03:002:34:307:4310:51
7:59
+0:05
21M
21.00 mi13:11:492:43:197:478:49
8:49
+0:50
35K
21.75 mi13:17:412:49:117:475:52
7:51
-0:58
23M
23.00 mi13:27:332:59:037:479:52
7:53
+0:02
24M
24.00 mi13:35:253:06:557:477:52
7:52
-0:01
40K
24.85 mi13:42:423:14:127:497:17
8:31
+0:39
25.2M
25.20 mi13:45:523:17:227:503:10
9:11
+0:40
Finish
26.22 mi13:53:553:25:257:508:03
7:54
-1:17

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

7:36 /mi

Average Pace

7:50 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

52:30

26% of race

Time at Steady Pace

2:13:39

65% of race

Time at Slower Pace

19:16

9% of race

Average Pace: 7:50 /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 mi10:52:3824:087:4624:08
7:46
#12048
10K
6.21 mi11:16:2047:507:4223:42
7:38
#11781
15K
9.32 mi11:39:561:11:267:4023:36
7:36
#11479
20K
12.43 mi12:03:461:35:167:4023:50
7:40
#11237
Half
13.11 mi12:08:581:40:287:405:12
7:37
#11220
25K
15.53 mi12:27:371:59:077:4018:39
7:42
#11038
30K
18.64 mi12:52:092:23:397:4224:32
7:54
#10830
20M
20.00 mi13:03:002:34:307:4310:51
7:59
#10739
21M
21.00 mi13:11:492:43:197:478:49
8:49
#10820
35K
21.75 mi13:17:412:49:117:475:52
7:51
#10805
23M
23.00 mi13:27:332:59:037:479:52
7:53
#10668
24M
24.00 mi13:35:253:06:557:477:52
7:52
#10651
40K
24.85 mi13:42:423:14:127:497:17
8:31
#10734
25.2M
25.20 mi13:45:523:17:227:503:10
9:11
#10777
Finish
26.22 mi13:53:553:25:257:508:03
7:54
#10791
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi120489133913310975(Top 41%)8632(Top 57%)8632(Top 421%)
10K6.21 mi3.10 mi11781+2679011+1229011+12211569(Top 43%)8915(Top 59%)8915(Top 434%)
15K9.32 mi3.11 mi11479+3028875+1368875+13610975(Top 41%)8632(Top 57%)8632(Top 421%)
20K12.43 mi3.11 mi11237+2428756+1198756+11910672(Top 40%)8416(Top 55%)8416(Top 410%)
Half13.11 mi0.68 mi11220+178749+78749+711153(Top 42%)8685(Top 57%)8685(Top 423%)
25K15.53 mi2.42 mi11038+1828647+1028647+10210228(Top 38%)8117(Top 53%)8117(Top 396%)
30K18.64 mi3.11 mi10830+2088501+1468501+14610104(Top 38%)7882(Top 52%)7882(Top 384%)
20M20.00 mi1.36 mi10739+918422+798422+7910148(Top 38%)7836(Top 52%)7836(Top 382%)
21M21.00 mi1.00 mi10820-818438-168438-1612334(Top 46%)8726(Top 57%)8726(Top 425%)
35K21.75 mi0.75 mi10805+158413+258413+2510926(Top 41%)8075(Top 53%)8075(Top 394%)
23M23.00 mi1.25 mi10668+1378310+1038310+1038939(Top 34%)6939(Top 46%)6939(Top 338%)
24M24.00 mi1.00 mi10651+178286+248286+2410258(Top 39%)7531(Top 50%)7531(Top 367%)
40K24.85 mi0.85 mi10734-838301-158301-1513432(Top 50%)8971(Top 59%)8971(Top 437%)
25.2M25.20 mi0.35 mi10777-438309-88309-813462(Top 51%)8955(Top 59%)8955(Top 436%)
Finish26.22 mi1.02 mi10791-148285+248285+2411368(Top 43%)7970(Top 53%)7970(Top 388%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

10975

Males

8632

M50-54

8632

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

11569

Males

8915

M50-54

8915

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

10975

Males

8632

M50-54

8632

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10672

Males

8416

M50-54

8416

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11153

Males

8685

M50-54

8685

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10228

Males

8117

M50-54

8117

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10104

Males

7882

M50-54

7882

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10148

Males

7836

M50-54

7836

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12334

Males

8726

M50-54

8726

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10926

Males

8075

M50-54

8075

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

8939

Males

6939

M50-54

6939

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10258

Males

7531

M50-54

7531

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13432

Males

8971

M50-54

8971

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

13462

Males

8955

M50-54

8955

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

11368

Males

7970

M50-54

7970

Passing Analysis

Category:
Athletes Passed
2257*
Passed By
1000
Net Change
+1257
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12048
5K → 10K452185+267#12048#11781
10K → 15K37371+302#11781#11479
15K → 20K29755+242#11479#11237
20K → Half3417+17#11237#11220
Half → 25K21735+182#11220#11038
25K → 30K29587+208#11038#10830
30K → 20M119*28+91#10830#10739
20M → 21M48129-81#10739#10820
21M → 35K5338+15#10820#10805
35K → 23M16124+137#10805#10668
23M → 24M7962+17#10668#10651
24M → 40K43126-83#10651#10734
40K → 25.2M1659-43#10734#10777
25.2M → Finish7084-14#10777#10791
TOTALS2257*1000+1257

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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