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BOSTON MARATHON 2023

Christopher Chen

Bib: 12374•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 42%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 46%
Division (M50-54)
#0 / 2052
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:10
Rank: #9270
Start → 5K
23:10 | 7:27/mi
10K· 6.21 mi
46:02
Rank: #9241 (+29)
5K → 10K
22:52 | 7:22/mi
15K· 9.32 mi
1:09:27
Rank: #9623 (-382)
10K → 15K
23:25 | 7:32/mi
20K· 12.43 mi
1:33:23
Rank: #9956 (-333)
15K → 20K
23:56 | 7:42/mi
Half· 13.11 mi
1:38:37
Rank: #10031 (-75)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
1:57:37
Rank: #10238 (-207)
Half → 25K
19:00 | 7:50/mi
30K· 18.64 mi
2:22:57
Rank: #10507 (-269)
25K → 30K
25:20 | 8:09/mi
20M
2:34:05
Rank: #10583 (-76)
30K → 20M
11:08 | 8:12/mi
21M
2:42:53
Rank: #10657 (-74)
20M → 21M
8:48 | 8:48/mi
35K· 21.75 mi
2:48:57
Rank: #10725 (-68)
21M → 35K
6:04 | 8:07/mi
23M
2:59:21
Rank: #10789 (-64)
35K → 23M
10:24 | 8:18/mi
24M
3:07:31
Rank: #10842 (-53)
23M → 24M
8:10 | 8:10/mi
40K· 24.85 mi
3:14:43
Rank: #10915 (-73)
24M → 40K
7:12 | 8:25/mi
25.2M
3:17:48
Rank: #10923 (-8)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:26:34
Rank: #11146 (-223)
25.2M → Finish
8:46 | 8:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:37
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:47:57
Pace8:14 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3723:107:2723:10
7:27
-
10K
6.21 mi11:13:2946:027:2522:52
7:22
-0:05
15K
9.32 mi11:36:541:09:277:2723:25
7:32
+0:10
20K
12.43 mi12:00:501:33:237:3123:56
7:42
+0:10
Half
13.11 mi12:06:041:38:377:315:14
7:40
-0:02
25K
15.53 mi12:25:041:57:377:3419:00
7:50
+0:10
30K
18.64 mi12:50:242:22:577:4025:20
8:09
+0:19
20M
20.00 mi13:01:322:34:057:4211:08
8:12
+0:03
21M
21.00 mi13:10:202:42:537:458:48
8:48
+0:36
35K
21.75 mi13:16:242:48:577:466:04
8:07
-0:41
23M
23.00 mi13:26:482:59:217:4810:24
8:18
+0:11
24M
24.00 mi13:34:583:07:317:498:10
8:10
-0:08
40K
24.85 mi13:42:103:14:437:507:12
8:25
+0:15
25.2M
25.20 mi13:45:153:17:487:513:05
8:56
+0:31
Finish
26.22 mi13:54:013:26:347:538:46
8:36
-0:20

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

7:22 /mi

Average Pace

7:53 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:37

57% of race

Time at Steady Pace

1:01:06

30% of race

Time at Slower Pace

27:51

13% of race

Average Pace: 7:53 /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 mi10:50:3723:107:2723:10
7:27
#9270
10K
6.21 mi11:13:2946:027:2522:52
7:22
#9241
15K
9.32 mi11:36:541:09:277:2723:25
7:32
#9623
20K
12.43 mi12:00:501:33:237:3123:56
7:42
#9956
Half
13.11 mi12:06:041:38:377:315:14
7:40
#10031
25K
15.53 mi12:25:041:57:377:3419:00
7:50
#10238
30K
18.64 mi12:50:242:22:577:4025:20
8:09
#10507
20M
20.00 mi13:01:322:34:057:4211:08
8:12
#10583
21M
21.00 mi13:10:202:42:537:458:48
8:48
#10657
35K
21.75 mi13:16:242:48:577:466:04
8:07
#10725
23M
23.00 mi13:26:482:59:217:4810:24
8:18
#10789
24M
24.00 mi13:34:583:07:317:498:10
8:10
#10842
40K
24.85 mi13:42:103:14:437:507:12
8:25
#10915
25.2M
25.20 mi13:45:153:17:487:513:05
8:56
#10923
Finish
26.22 mi13:54:013:26:347:538:46
8:36
#11146
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi92707746774610476(Top 39%)8400(Top 55%)8400(Top 409%)
10K6.21 mi3.10 mi9241+297718+287718+289302(Top 35%)7749(Top 51%)7749(Top 378%)
15K9.32 mi3.11 mi9623-3827941-2237941-22310476(Top 39%)8400(Top 55%)8400(Top 409%)
20K12.43 mi3.11 mi9956-3338125-1848125-18410944(Top 41%)8551(Top 56%)8551(Top 417%)
Half13.11 mi0.68 mi10031-758168-438168-4311567(Top 43%)8880(Top 59%)8880(Top 433%)
25K15.53 mi2.42 mi10238-2078258-908258-9011380(Top 43%)8658(Top 57%)8658(Top 422%)
30K18.64 mi3.11 mi10507-2698337-798337-7912010(Top 45%)8803(Top 58%)8803(Top 429%)
20M20.00 mi1.36 mi10583-768353-168353-1611632(Top 44%)8537(Top 56%)8537(Top 416%)
21M21.00 mi1.00 mi10657-748364-118364-1112229(Top 46%)8683(Top 57%)8683(Top 423%)
35K21.75 mi0.75 mi10725-688372-88372-812807(Top 48%)8894(Top 59%)8894(Top 433%)
23M23.00 mi1.25 mi10789-648373-18373-111906(Top 45%)8424(Top 56%)8424(Top 411%)
24M24.00 mi1.00 mi10842-538380-78380-712343(Top 46%)8554(Top 56%)8554(Top 417%)
40K24.85 mi0.85 mi10915-738388-88388-812805(Top 48%)8680(Top 57%)8680(Top 423%)
25.2M25.20 mi0.35 mi10923-88379+98379+912115(Top 46%)8309(Top 55%)8309(Top 405%)
Finish26.22 mi1.02 mi11146-2238470-918470-9115965(Top 60%)10151(Top 67%)10151(Top 495%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10476

Males

8400

M50-54

8400

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9302

Males

7749

M50-54

7749

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10476

Males

8400

M50-54

8400

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10944

Males

8551

M50-54

8551

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11567

Males

8880

M50-54

8880

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11380

Males

8658

M50-54

8658

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12010

Males

8803

M50-54

8803

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

11632

Males

8537

M50-54

8537

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12229

Males

8683

M50-54

8683

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

12807

Males

8894

M50-54

8894

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

11906

Males

8424

M50-54

8424

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12343

Males

8554

M50-54

8554

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12805

Males

8680

M50-54

8680

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12115

Males

8309

M50-54

8309

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

15965

Males

10151

M50-54

10151

Passing Analysis

Category:
Athletes Passed
949*
Passed By
2824
Net Change
-1876
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9270
5K → 10K278249+29#9270#9241
10K → 15K64446-382#9241#9623
15K → 20K73406-333#9623#9956
20K → Half983-75#9956#10031
Half → 25K69276-207#10031#10238
25K → 30K95364-269#10238#10507
30K → 20M57*133-76#10507#10583
20M → 21M51125-74#10583#10657
21M → 35K37105-68#10657#10725
35K → 23M61125-64#10725#10789
23M → 24M55108-53#10789#10842
24M → 40K44117-73#10842#10915
40K → 25.2M3139-8#10915#10923
25.2M → Finish25248-223#10923#11146
TOTALS949*2824-1876

* 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