John Sim

Bib: 10482M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 35%
Division (M50-54)
#0 / 2052
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:07
Rank: #12010
Start5K
24:07 | 7:46/mi
10K· 6.21 mi
47:20
Rank: #11066 (+944)
5K10K
23:13 | 7:28/mi
15K· 9.32 mi
1:10:30
Rank: #10606 (+460)
10K15K
23:10 | 7:27/mi
20K· 12.43 mi
1:34:21
Rank: #10632 (-26)
15K20K
23:51 | 7:41/mi
Half· 13.11 mi
1:39:25
Rank: #10571 (+61)
20KHalf
5:04 | 7:26/mi
25K· 15.53 mi
1:57:27
Rank: #10146 (+425)
Half25K
18:02 | 7:26/mi
30K· 18.64 mi
2:21:16
Rank: #9800 (+346)
25K30K
23:49 | 7:40/mi
20M
2:31:47
Rank: #9659 (+141)
30K20M
10:31 | 7:44/mi
21M
2:39:51
Rank: #9523 (+136)
20M21M
8:04 | 8:04/mi
35K· 21.75 mi
2:45:19
Rank: #9413 (+110)
21M35K
5:28 | 7:18/mi
23M
2:54:47
Rank: #9226 (+187)
35K23M
9:28 | 7:34/mi
24M
3:02:05
Rank: #9068 (+158)
23M24M
7:18 | 7:18/mi
40K· 24.85 mi
3:08:27
Rank: #8934 (+134)
24M40K
6:22 | 7:27/mi
25.2M
3:11:11
Rank: #8870 (+64)
40K25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:18:28
Rank: #8734 (+136)
25.2MFinish
7:17 | 7:09/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:39:25
Pace7:35 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:03
Pace7:33 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3824:077:4624:07
7:46
-
10K
6.21 mi11:13:5147:207:3723:13
7:28
-0:18
15K
9.32 mi11:37:011:10:307:3423:10
7:27
-0:01
20K
12.43 mi12:00:521:34:217:3623:51
7:41
+0:14
Half
13.11 mi12:05:561:39:257:355:04
7:26
-0:15
25K
15.53 mi12:23:581:57:277:3418:02
7:26
0:00
30K
18.64 mi12:47:472:21:167:3523:49
7:40
+0:14
20M
20.00 mi12:58:182:31:477:3510:31
7:44
+0:04
21M
21.00 mi13:06:222:39:517:378:04
8:04
+0:20
35K
21.75 mi13:11:502:45:197:365:28
7:18
-0:46
23M
23.00 mi13:21:182:54:477:369:28
7:34
+0:16
24M
24.00 mi13:28:363:02:057:357:18
7:18
-0:16
40K
24.85 mi13:34:583:08:277:356:22
7:27
+0:09
25.2M
25.20 mi13:37:423:11:117:352:44
7:56
+0:29
Finish
26.22 mi13:44:593:18:287:357:17
7:09
-0:47

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

7:09 /mi

Average Pace

7:35 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:40

95% of race

Time at Steady Pace

10:48

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi10:50:3824:077:4624:07
7:46
#12010
10K
6.21 mi11:13:5147:207:3723:13
7:28
#11066
15K
9.32 mi11:37:011:10:307:3423:10
7:27
#10606
20K
12.43 mi12:00:521:34:217:3623:51
7:41
#10632
Half
13.11 mi12:05:561:39:257:355:04
7:26
#10571
25K
15.53 mi12:23:581:57:277:3418:02
7:26
#10146
30K
18.64 mi12:47:472:21:167:3523:49
7:40
#9800
20M
20.00 mi12:58:182:31:477:3510:31
7:44
#9659
21M
21.00 mi13:06:222:39:517:378:04
8:04
#9523
35K
21.75 mi13:11:502:45:197:365:28
7:18
#9413
23M
23.00 mi13:21:182:54:477:369:28
7:34
#9226
24M
24.00 mi13:28:363:02:057:357:18
7:18
#9068
40K
24.85 mi13:34:583:08:277:356:22
7:27
#8934
25.2M
25.20 mi13:37:423:11:117:352:44
7:56
#8870
Finish
26.22 mi13:44:593:18:287:357:17
7:09
#8734
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi12010911491149807(Top 37%)8036(Top 53%)8036(Top 392%)
10K6.21 mi3.10 mi11066+9448689+4258689+42510223(Top 38%)8285(Top 55%)8285(Top 404%)
15K9.32 mi3.11 mi10606+4608468+2218468+2219807(Top 37%)8036(Top 53%)8036(Top 392%)
20K12.43 mi3.11 mi10632-268471-38471-310705(Top 40%)8426(Top 56%)8426(Top 411%)
Half13.11 mi0.68 mi10571+618453+188453+189555(Top 36%)7836(Top 52%)7836(Top 382%)
25K15.53 mi2.42 mi10146+4258205+2488205+2488309(Top 31%)7011(Top 46%)7011(Top 342%)
30K18.64 mi3.11 mi9800+3467985+2207985+2208409(Top 32%)6931(Top 46%)6931(Top 338%)
20M20.00 mi1.36 mi9659+1417869+1167869+1168422(Top 32%)6847(Top 45%)6847(Top 334%)
21M21.00 mi1.00 mi9523+1367770+997770+997780(Top 29%)6363(Top 42%)6363(Top 310%)
35K21.75 mi0.75 mi9413+1107683+877683+877178(Top 27%)6018(Top 40%)6018(Top 293%)
23M23.00 mi1.25 mi9226+1877549+1347549+1346809(Top 26%)5707(Top 38%)5707(Top 278%)
24M24.00 mi1.00 mi9068+1587437+1127437+1126386(Top 24%)5349(Top 35%)5349(Top 261%)
40K24.85 mi0.85 mi8934+1347335+1027335+1026368(Top 24%)5267(Top 35%)5267(Top 257%)
25.2M25.20 mi0.35 mi8870+647283+527283+526088(Top 23%)5019(Top 33%)5019(Top 245%)
Finish26.22 mi1.02 mi8734+1367180+1037180+1036099(Top 23%)5006(Top 33%)5006(Top 244%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9807

Males

8036

M50-54

8036

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10223

Males

8285

M50-54

8285

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9807

Males

8036

M50-54

8036

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10705

Males

8426

M50-54

8426

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9555

Males

7836

M50-54

7836

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8309

Males

7011

M50-54

7011

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8409

Males

6931

M50-54

6931

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8422

Males

6847

M50-54

6847

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7780

Males

6363

M50-54

6363

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7178

Males

6018

M50-54

6018

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6809

Males

5707

M50-54

5707

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6386

Males

5349

M50-54

5349

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6368

Males

5267

M50-54

5267

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6088

Males

5019

M50-54

5019

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6099

Males

5006

M50-54

5006

Passing Analysis

Category:
Athletes Passed
3662*
Passed By
386
Net Change
+3276
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12010
5K10K100056+944#12010#11066
10K15K49333+460#11066#10606
15K20K150176-26#10606#10632
20KHalf7211+61#10632#10571
Half25K4305+425#10571#10146
25K30K376*30+346#10146#9800
30K20M16524+141#9800#9659
20M21M14812+136#9659#9523
21M35K1199+110#9523#9413
35K23M19710+187#9413#9226
23M24M1624+158#9226#9068
24M40K1406+134#9068#8934
40K25.2M662+64#8934#8870
25.2MFinish1448+136#8870#8734
TOTALS3662*386+3276

* 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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Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing