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BOSTON MARATHON 2023

Chien Chih Lin

Bib: 9341•M

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 46%
Division (M50-54)
#0 / 2052
Top 47%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:30
Rank: #7753
Start → 5K
22:30 | 7:15/mi
10K· 6.21 mi
44:51
Rank: #7880 (-127)
5K → 10K
22:21 | 7:12/mi
15K· 9.32 mi
1:07:58
Rank: #8410 (-530)
10K → 15K
23:07 | 7:26/mi
20K· 12.43 mi
1:31:41
Rank: #8837 (-427)
15K → 20K
23:43 | 7:38/mi
Half· 13.11 mi
1:36:54
Rank: #8942 (-105)
20K → Half
5:13 | 7:38/mi
25K· 15.53 mi
1:56:40
Rank: #9739 (-797)
Half → 25K
19:46 | 8:09/mi
30K· 18.64 mi
2:23:36
Rank: #10810 (-1071)
25K → 30K
26:56 | 8:40/mi
20M
2:34:53
Rank: #10875 (-65)
30K → 20M
11:17 | 8:18/mi
21M
2:43:54
Rank: #11046 (-171)
20M → 21M
9:01 | 9:01/mi
35K· 21.75 mi
2:49:47
Rank: #11038 (+8)
21M → 35K
5:53 | 7:52/mi
23M
2:59:48
Rank: #10930 (+108)
35K → 23M
10:01 | 8:00/mi
24M
3:07:50
Rank: #10941 (-11)
23M → 24M
8:02 | 8:02/mi
40K· 24.85 mi
3:14:44
Rank: #10919 (+22)
24M → 40K
6:54 | 8:04/mi
25.2M
3:17:53
Rank: #10948 (-29)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:26:02
Rank: #10984 (-36)
25.2M → Finish
8:09 | 8:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:54
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:49:08
Pace8:20 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5722:307:1522:30
7:15
-
10K
6.21 mi11:10:1844:517:1322:21
7:12
-0:03
15K
9.32 mi11:33:251:07:587:1823:07
7:26
+0:14
20K
12.43 mi11:57:081:31:417:2323:43
7:38
+0:12
Half
13.11 mi12:02:211:36:547:235:13
7:38
0:00
25K
15.53 mi12:22:071:56:407:3119:46
8:09
+0:31
30K
18.64 mi12:49:032:23:367:4226:56
8:40
+0:31
20M
20.00 mi13:00:202:34:537:4511:17
8:18
-0:22
21M
21.00 mi13:09:212:43:547:489:01
9:01
+0:43
35K
21.75 mi13:15:142:49:477:485:53
7:52
-1:09
23M
23.00 mi13:25:152:59:487:4910:01
8:00
+0:08
24M
24.00 mi13:33:173:07:507:508:02
8:02
+0:02
40K
24.85 mi13:40:113:14:447:506:54
8:04
+0:02
25.2M
25.20 mi13:43:203:17:537:513:09
9:08
+1:04
Finish
26.22 mi13:51:293:26:027:528:09
8:00
-1:08

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

7:12 /mi

Average Pace

7:52 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:54

47% of race

Time at Steady Pace

58:45

29% of race

Time at Slower Pace

50:23

24% of race

Average Pace: 7:51 /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 mi10:47:5722:307:1522:30
7:15
#7753
10K
6.21 mi11:10:1844:517:1322:21
7:12
#7880
15K
9.32 mi11:33:251:07:587:1823:07
7:26
#8410
20K
12.43 mi11:57:081:31:417:2323:43
7:38
#8837
Half
13.11 mi12:02:211:36:547:235:13
7:38
#8942
25K
15.53 mi12:22:071:56:407:3119:46
8:09
#9739
30K
18.64 mi12:49:032:23:367:4226:56
8:40
#10810
20M
20.00 mi13:00:202:34:537:4511:17
8:18
#10875
21M
21.00 mi13:09:212:43:547:489:01
9:01
#11046
35K
21.75 mi13:15:142:49:477:485:53
7:52
#11038
23M
23.00 mi13:25:152:59:487:4910:01
8:00
#10930
24M
24.00 mi13:33:173:07:507:508:02
8:02
#10941
40K
24.85 mi13:40:113:14:447:506:54
8:04
#10919
25.2M
25.20 mi13:43:203:17:537:513:09
9:08
#10948
Finish
26.22 mi13:51:293:26:027:528:09
8:00
#10984
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi7753681768179687(Top 36%)7973(Top 53%)7973(Top 389%)
10K6.21 mi3.10 mi7880-1276898-816898-818052(Top 30%)6982(Top 46%)6982(Top 340%)
15K9.32 mi3.11 mi8410-5307220-3227220-3229687(Top 36%)7973(Top 53%)7973(Top 389%)
20K12.43 mi3.11 mi8837-4277457-2377457-23710387(Top 39%)8276(Top 55%)8276(Top 403%)
Half13.11 mi0.68 mi8942-1057512-557512-5511324(Top 43%)8757(Top 58%)8757(Top 427%)
25K15.53 mi2.42 mi9739-7977990-4787990-47813870(Top 52%)9708(Top 64%)9708(Top 473%)
30K18.64 mi3.11 mi10810-10718491-5018491-50115306(Top 57%)10168(Top 67%)10168(Top 496%)
20M20.00 mi1.36 mi10875-658494-38494-312361(Top 46%)8844(Top 58%)8844(Top 431%)
21M21.00 mi1.00 mi11046-1718546-528546-5213468(Top 51%)9246(Top 61%)9246(Top 451%)
35K21.75 mi0.75 mi11038+88534+128534+1211081(Top 42%)8150(Top 54%)8150(Top 397%)
23M23.00 mi1.25 mi10930+1088449+858449+859724(Top 37%)7347(Top 48%)7347(Top 358%)
24M24.00 mi1.00 mi10941-118431+188431+1811452(Top 43%)8128(Top 54%)8128(Top 396%)
40K24.85 mi0.85 mi10919+228390+418390+4110485(Top 39%)7597(Top 50%)7597(Top 370%)
25.2M25.20 mi0.35 mi10948-298389+18389+113200(Top 50%)8841(Top 58%)8841(Top 431%)
Finish26.22 mi1.02 mi10984-368386+38386+312095(Top 45%)8330(Top 55%)8330(Top 406%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9687

Males

7973

M50-54

7973

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

8052

Males

6982

M50-54

6982

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9687

Males

7973

M50-54

7973

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10387

Males

8276

M50-54

8276

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11324

Males

8757

M50-54

8757

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

13870

Males

9708

M50-54

9708

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15306

Males

10168

M50-54

10168

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12361

Males

8844

M50-54

8844

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

13468

Males

9246

M50-54

9246

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

11081

Males

8150

M50-54

8150

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9724

Males

7347

M50-54

7347

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

11452

Males

8128

M50-54

8128

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10485

Males

7597

M50-54

7597

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13200

Males

8841

M50-54

8841

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12095

Males

8330

M50-54

8330

Passing Analysis

Category:
Athletes Passed
782*
Passed By
4012
Net Change
-3231
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7753
5K → 10K168295-127#7753#7880
10K → 15K27557-530#7880#8410
15K → 20K44471-427#8410#8837
20K → Half6111-105#8837#8942
Half → 25K16813-797#8942#9739
25K → 30K241094-1071#9739#10810
30K → 20M64*129-65#10810#10875
20M → 21M30201-171#10875#11046
21M → 35K4941+8#11046#11038
35K → 23M14335+108#11038#10930
23M → 24M6475-11#10930#10941
24M → 40K7452+22#10941#10919
40K → 25.2M2352-29#10919#10948
25.2M → Finish5086-36#10948#10984
TOTALS782*4012-3231

* 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