Cai Nielsen

Bib: 18451M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:12
Rank: #14787
Start5K
25:12 | 8:07/mi
10K· 6.21 mi
50:25
Rank: #15208 (-421)
5K10K
25:13 | 8:07/mi
15K· 9.32 mi
1:15:42
Rank: #15263 (-55)
10K15K
25:17 | 8:08/mi
20K· 12.43 mi
1:40:54
Rank: #15017 (+246)
15K20K
25:12 | 8:07/mi
Half· 13.11 mi
1:46:09
Rank: #14857 (+160)
20KHalf
5:15 | 7:42/mi
25K· 15.53 mi
2:05:28
Rank: #14479 (+378)
Half25K
19:19 | 7:58/mi
30K· 18.64 mi
2:31:28
Rank: #14287 (+192)
25K30K
26:00 | 8:22/mi
20M
2:42:58
Rank: #14212 (+75)
30K20M
11:30 | 8:28/mi
21M
2:52:13
Rank: #14218 (-6)
20M21M
9:15 | 9:15/mi
35K· 21.75 mi
2:58:46
Rank: #14305 (-87)
21M35K
6:33 | 8:45/mi
23M
3:09:24
Rank: #14205 (+100)
35K23M
10:38 | 8:30/mi
24M
3:17:57
Rank: #14230 (-25)
23M24M
8:33 | 8:33/mi
40K· 24.85 mi
3:26:04
Rank: #14416 (-186)
24M40K
8:07 | 9:30/mi
25.2M
3:29:27
Rank: #14451 (-35)
40K25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:37:56
Rank: #14415 (+36)
25.2MFinish
8:29 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:09
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:51:47
Pace8:32 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2525:128:0725:12
8:07
-
10K
6.21 mi11:41:3850:258:0725:13
8:07
0:00
15K
9.32 mi12:06:551:15:428:0725:17
8:08
+0:01
20K
12.43 mi12:32:071:40:548:0725:12
8:07
-0:01
Half
13.11 mi12:37:221:46:098:065:15
7:42
-0:25
25K
15.53 mi12:56:412:05:288:0519:19
7:58
+0:16
30K
18.64 mi13:22:412:31:288:0826:00
8:22
+0:24
20M
20.00 mi13:34:112:42:588:0911:30
8:28
+0:06
21M
21.00 mi13:43:262:52:138:129:15
9:15
+0:47
35K
21.75 mi13:49:592:58:468:136:33
8:45
-0:30
23M
23.00 mi14:00:373:09:248:1410:38
8:30
-0:15
24M
24.00 mi14:09:103:17:578:158:33
8:33
+0:03
40K
24.85 mi14:17:173:26:048:178:07
9:30
+0:57
25.2M
25.20 mi14:20:403:29:278:193:23
9:49
+0:19
Finish
26.22 mi14:29:093:37:568:198:29
8:19
-1:30

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

7:42 /mi

Average Pace

8:19 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:34

11% of race

Time at Steady Pace

2:46:04

76% of race

Time at Slower Pace

27:18

13% of race

Average Pace: 8:19 /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 mi11:16:2525:128:0725:12
8:07
#14787
10K
6.21 mi11:41:3850:258:0725:13
8:07
#15208
15K
9.32 mi12:06:551:15:428:0725:17
8:08
#15263
20K
12.43 mi12:32:071:40:548:0725:12
8:07
#15017
Half
13.11 mi12:37:221:46:098:065:15
7:42
#14857
25K
15.53 mi12:56:412:05:288:0519:19
7:58
#14479
30K
18.64 mi13:22:412:31:288:0826:00
8:22
#14287
20M
20.00 mi13:34:112:42:588:0911:30
8:28
#14212
21M
21.00 mi13:43:262:52:138:129:15
9:15
#14218
35K
21.75 mi13:49:592:58:468:136:33
8:45
#14305
23M
23.00 mi14:00:373:09:248:1410:38
8:30
#14205
24M
24.00 mi14:09:103:17:578:158:33
8:33
#14230
40K
24.85 mi14:17:173:26:048:178:07
9:30
#14416
25.2M
25.20 mi14:20:403:29:278:193:23
9:49
#14451
Finish
26.22 mi14:29:093:37:568:198:29
8:19
#14415
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14787102581025815404(Top 58%)10470(Top 69%)10470(Top 736%)
10K6.21 mi3.10 mi15208-42110413-15510413-15515615(Top 59%)10566(Top 70%)10566(Top 743%)
15K9.32 mi3.11 mi15263-5510417-410417-415404(Top 58%)10470(Top 69%)10470(Top 736%)
20K12.43 mi3.11 mi15017+24610303+11410303+11414280(Top 54%)9986(Top 66%)9986(Top 702%)
Half13.11 mi0.68 mi14857+16010239+6410239+6411835(Top 44%)9020(Top 59%)9020(Top 634%)
25K15.53 mi2.42 mi14479+37810071+16810071+16812458(Top 47%)9110(Top 60%)9110(Top 641%)
30K18.64 mi3.11 mi14287+1929943+1289943+12813472(Top 51%)9450(Top 62%)9450(Top 665%)
20M20.00 mi1.36 mi14212+759896+479896+4713401(Top 50%)9313(Top 61%)9313(Top 655%)
21M21.00 mi1.00 mi14218-69878+189878+1814701(Top 55%)9807(Top 65%)9807(Top 690%)
35K21.75 mi0.75 mi14305-879895-179895-1716663(Top 63%)10549(Top 70%)10549(Top 742%)
23M23.00 mi1.25 mi14205+1009837+589837+5813158(Top 49%)8991(Top 59%)8991(Top 632%)
24M24.00 mi1.00 mi14230-259826+119826+1114746(Top 55%)9637(Top 64%)9637(Top 678%)
40K24.85 mi0.85 mi14416-1869871-459871-4518286(Top 69%)11168(Top 74%)11168(Top 785%)
25.2M25.20 mi0.35 mi14451-359878-79878-716513(Top 62%)10325(Top 68%)10325(Top 726%)
Finish26.22 mi1.02 mi14415+369847+319847+3114228(Top 53%)9347(Top 62%)9347(Top 657%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15404

Males

10470

M55-59

10470

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

15615

Males

10566

M55-59

10566

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15404

Males

10470

M55-59

10470

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14280

Males

9986

M55-59

9986

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11835

Males

9020

M55-59

9020

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

12458

Males

9110

M55-59

9110

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13472

Males

9450

M55-59

9450

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

13401

Males

9313

M55-59

9313

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14701

Males

9807

M55-59

9807

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16663

Males

10549

M55-59

10549

35K→23M

21.8 - 23.0 mi

Top 49%
×5stories
+23ft-63ft

Overall

13158

Males

8991

M55-59

8991

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

14746

Males

9637

M55-59

9637

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18286

Males

11168

M55-59

11168

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16513

Males

10325

M55-59

10325

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

14228

Males

9347

M55-59

9347

Passing Analysis

Category:
Athletes Passed
2005
Passed By
1633
Net Change
+372
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14787
5K10K145566-421#14787#15208
10K15K157212-55#15208#15263
15K20K32680+246#15263#15017
20KHalf1611+160#15017#14857
Half25K38911+378#14857#14479
25K30K28593+192#14479#14287
30K20M12247+75#14287#14212
20M21M7783-6#14212#14218
21M35K30117-87#14218#14305
35K23M13737+100#14305#14205
23M24M5782-25#14205#14230
24M40K18204-186#14230#14416
40K25.2M2156-35#14416#14451
25.2MFinish8044+36#14451#14415
TOTALS20051633+372
📊

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