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BOSTON MARATHON 2023

Frank Chan

Bib: 13531•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 28%
Gender (Male)
#0 / 15176
Top 43%
Masters (Masters Men)
#0 / 9891
Top 29%
Division (M50-54)
#0 / 2052
Top 24%
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
7:38/mi
23:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:40
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:09:42
↑ 67↓ 78
20K· 12.43 mi
7:26/mi
1:32:47
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:37:45
↑ 19↓ 370.5%
25K· 15.53 mi
7:25/mi
1:55:43
↑ 66↓ 880.2%
30K· 18.64 mi
7:22/mi
2:18:36
↑ 181↓ 1480.2%
20M
7:23/mi
2:28:38
↑ 64↓ 500.2%
21M
7:36/mi
2:36:14
↑ 106↓ 241.6%
35K· 21.75 mi
6:57/mi
2:41:26
↑ 17↓ 861.7%
23M
7:25/mi
2:50:43
↑ 23↓ 630.6%
24M
7:16/mi
2:57:59
↓ 821.3%
40K· 24.85 mi
7:22/mi
3:04:17
↓ 200.3%
25.2M
7:53/mi
3:07:00
↑ 13↓ 160.2%
Finish· 26.22 mi
7:14/mi
3:14:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:45
Pace7:27 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:37
Pace7:22 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1123:447:3823:44
7:38
-
10K
6.21 mi11:15:0746:407:3122:56
7:23
-0:15
15K
9.32 mi11:38:091:09:427:2923:02
7:25
+0:02
20K
12.43 mi12:01:141:32:477:2823:05
7:26
+0:01
Half
13.11 mi12:06:121:37:457:274:58
7:17
-0:09
25K
15.53 mi12:24:101:55:437:2717:58
7:25
+0:08
30K
18.64 mi12:47:032:18:367:2622:53
7:22
-0:03
20M
20.00 mi12:57:052:28:387:2610:02
7:23
+0:01
21M
21.00 mi13:04:412:36:147:267:36
7:36
+0:13
35K
21.75 mi13:09:532:41:267:255:12
6:57
-0:39
23M
23.00 mi13:19:102:50:437:259:17
7:25
+0:28
24M
24.00 mi13:26:262:57:597:257:16
7:16
-0:09
40K
24.85 mi13:32:443:04:177:256:18
7:22
+0:06
25.2M
25.20 mi13:35:273:07:007:252:43
7:53
+0:31
Finish
26.22 mi13:42:493:14:227:257:22
7:14
-0:39

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

6:57 /mi

Average Pace

7:25 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:39

99% of race

Time at Steady Pace

2:43

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:25 /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 mi10:52:1123:447:3823:44
7:38
#10889
10K
6.21 mi11:15:0746:407:3122:56
7:23
#10115
15K
9.32 mi11:38:091:09:427:2923:02
7:25
#9838
20K
12.43 mi12:01:141:32:477:2823:05
7:26
#9534
Half
13.11 mi12:06:121:37:457:274:58
7:17
#9472
25K
15.53 mi12:24:101:55:437:2717:58
7:25
#9216
30K
18.64 mi12:47:032:18:367:2622:53
7:22
#8644
20M
20.00 mi12:57:052:28:387:2610:02
7:23
#8409
21M
21.00 mi13:04:412:36:147:267:36
7:36
#8187
35K
21.75 mi13:09:532:41:267:255:12
6:57
#8035
23M
23.00 mi13:19:102:50:437:259:17
7:25
#7861
24M
24.00 mi13:26:262:57:597:257:16
7:16
#7751
40K
24.85 mi13:32:443:04:177:256:18
7:22
#7647
25.2M
25.20 mi13:35:273:07:007:252:43
7:53
#7605
Finish
26.22 mi13:42:493:14:227:257:22
7:14
#7548
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi10889859485949433(Top 35%)7821(Top 52%)7821(Top 381%)
10K6.21 mi3.10 mi10115+7748209+3858209+3859447(Top 35%)7826(Top 52%)7826(Top 381%)
15K9.32 mi3.11 mi9838+2778068+1418068+1419433(Top 35%)7821(Top 52%)7821(Top 381%)
20K12.43 mi3.11 mi9534+3047876+1927876+1928729(Top 33%)7329(Top 48%)7329(Top 357%)
Half13.11 mi0.68 mi9472+627839+377839+378380(Top 31%)7119(Top 47%)7119(Top 347%)
25K15.53 mi2.42 mi9216+2567673+1667673+1668084(Top 30%)6855(Top 45%)6855(Top 334%)
30K18.64 mi3.11 mi8644+5727279+3947279+3946399(Top 24%)5660(Top 37%)5660(Top 276%)
20M20.00 mi1.36 mi8409+2357111+1687111+1686107(Top 23%)5380(Top 35%)5380(Top 262%)
21M21.00 mi1.00 mi8187+2226953+1586953+1585107(Top 19%)4560(Top 30%)4560(Top 222%)
35K21.75 mi0.75 mi8035+1526846+1076846+1075091(Top 19%)4566(Top 30%)4566(Top 223%)
23M23.00 mi1.25 mi7861+1746717+1296717+1295951(Top 22%)5158(Top 34%)5158(Top 251%)
24M24.00 mi1.00 mi7751+1106623+946623+946146(Top 23%)5193(Top 34%)5193(Top 253%)
40K24.85 mi0.85 mi7647+1046547+766547+765888(Top 22%)4954(Top 33%)4954(Top 241%)
25.2M25.20 mi0.35 mi7605+426510+376510+375816(Top 22%)4836(Top 32%)4836(Top 236%)
Finish26.22 mi1.02 mi7548+576450+606450+606609(Top 25%)5320(Top 35%)5320(Top 259%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9433

Males

7821

M50-54

7821

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9447

Males

7826

M50-54

7826

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9433

Males

7821

M50-54

7821

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8729

Males

7329

M50-54

7329

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8380

Males

7119

M50-54

7119

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8084

Males

6855

M50-54

6855

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6399

Males

5660

M50-54

5660

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6107

Males

5380

M50-54

5380

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

5107

Males

4560

M50-54

4560

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5091

Males

4566

M50-54

4566

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

5951

Males

5158

M50-54

5158

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6146

Males

5193

M50-54

5193

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5888

Males

4954

M50-54

4954

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5816

Males

4836

M50-54

4836

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6609

Males

5320

M50-54

5320

Passing Analysis

Category:
Athletes Passed
3626*
Passed By
285
Net Change
+3341
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10889
5K → 10K833*59+774#10889#10115
10K → 15K348*71+277#10115#9838
15K → 20K330*26+304#9838#9534
20K → Half697+62#9534#9472
Half → 25K27014+256#9472#9216
25K → 30K5808+572#9216#8644
30K → 20M2438+235#8644#8409
20M → 21M2286+222#8409#8187
21M → 35K1542+152#8187#8035
35K → 23M18410+174#8035#7861
23M → 24M12414+110#7861#7751
24M → 40K12117+104#7751#7647
40K → 25.2M508+42#7647#7605
25.2M → Finish9235+57#7605#7548
TOTALS3626*285+3341

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

📊

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