Jeff Dalzell

Bib: 22453M

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M65-69)
#0 / 617
Top 25%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:35
Rank: #19594
Start5K
8:53/mi
27:35 split
10K· 6.21 mi
57:57
Rank: #21051 (-1457)
5K10K
9:46/mi
30:22 split
15K· 9.32 mi
1:25:15
Rank: #20130 (+921)
10K15K
8:47/mi
27:18 split
20K· 12.43 mi
1:53:29
Rank: #19495 (+635)
15K20K
9:05/mi
28:14 split
Half· 13.11 mi
1:59:20
Rank: #19345 (+150)
20KHalf
8:34/mi
5:51 split
25K· 15.53 mi
2:23:23
Rank: #19271 (+74)
Half25K
9:55/mi
24:03 split
30K· 18.64 mi
2:52:00
Rank: #18374 (+897)
25K30K
9:13/mi
28:37 split
20M
3:03:55
Rank: #17866 (+508)
30K20M
8:46/mi
11:55 split
21M
3:13:05
Rank: #17419 (+447)
20M21M
9:10/mi
9:10 split
35K· 21.75 mi
3:19:52
Rank: #17267 (+152)
21M35K
9:04/mi
6:47 split
23M
3:31:20
Rank: #16957 (+310)
35K23M
9:09/mi
11:28 split
24M
3:39:49
Rank: #16665 (+292)
23M24M
8:29/mi
8:29 split
40K· 24.85 mi
3:47:57
Rank: #16507 (+158)
24M40K
9:31/mi
8:08 split
25.2M
3:51:11
Rank: #16356 (+151)
40K25.2M
9:23/mi
3:14 split
Finish· 26.22 mi
3:59:54
Rank: #16215 (+141)
25.2MFinish
8:33/mi
8:43 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:20
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:00:34
Pace9:12 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:3527:358:5327:35
8:53
-
10K
6.21 mi11:56:5757:579:2030:22
9:46
+0:53
15K
9.32 mi12:24:151:25:159:0927:18
8:47
-0:59
20K
12.43 mi12:52:291:53:299:0828:14
9:05
+0:18
Half
13.11 mi12:58:201:59:209:065:51
8:34
-0:31
25K
15.53 mi13:22:232:23:239:1424:03
9:55
+1:21
30K
18.64 mi13:51:002:52:009:1428:37
9:13
-0:42
20M
20.00 mi14:02:553:03:559:1211:55
8:46
-0:27
21M
21.00 mi14:12:053:13:059:129:10
9:10
+0:24
35K
21.75 mi14:18:523:19:529:116:47
9:04
-0:06
23M
23.00 mi14:30:203:31:209:1111:28
9:09
+0:05
24M
24.00 mi14:38:493:39:499:108:29
8:29
-0:40
40K
24.85 mi14:46:573:47:579:108:08
9:31
+1:02
25.2M
25.20 mi14:50:113:51:119:103:14
9:23
-0:08
Finish
26.22 mi14:58:543:59:549:098:43
8:33
-0:50

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

8:29 /mi

Average Pace

9:09 /mi

Slowest Pace

9:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:07

73% of race

Time at Steady Pace

1:05:47

27% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:09 /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 mi11:26:3527:358:5327:35
8:53
#19594
10K
6.21 mi11:56:5757:579:2030:22
9:46
#21051
15K
9.32 mi12:24:151:25:159:0927:18
8:47
#20130
20K
12.43 mi12:52:291:53:299:0828:14
9:05
#19495
Half
13.11 mi12:58:201:59:209:065:51
8:34
#19345
25K
15.53 mi13:22:232:23:239:1424:03
9:55
#19271
30K
18.64 mi13:51:002:52:009:1428:37
9:13
#18374
20M
20.00 mi14:02:553:03:559:1211:55
8:46
#17866
21M
21.00 mi14:12:053:13:059:129:10
9:10
#17419
35K
21.75 mi14:18:523:19:529:116:47
9:04
#17267
23M
23.00 mi14:30:203:31:209:1111:28
9:09
#16957
24M
24.00 mi14:38:493:39:499:108:29
8:29
#16665
40K
24.85 mi14:46:573:47:579:108:08
9:31
#16507
25.2M
25.20 mi14:50:113:51:119:103:14
9:23
#16356
Finish
26.22 mi14:58:543:59:549:098:43
8:33
#16215
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi19594118721187217909(Top 70%)11203(Top 77%)11203(Top 1816%)
10K6.21 mi3.10 mi21051-145712592-72012592-72022025(Top 86%)13051(Top 90%)13051(Top 2115%)
15K9.32 mi3.11 mi20130+92112183+40912183+40917909(Top 70%)11203(Top 77%)11203(Top 1816%)
20K12.43 mi3.11 mi19495+63511892+29111892+29117705(Top 69%)11125(Top 76%)11125(Top 1803%)
Half13.11 mi0.68 mi19345+15011818+7411818+7416109(Top 63%)10386(Top 71%)10386(Top 1683%)
25K15.53 mi2.42 mi19271+7411780+3811780+3818886(Top 74%)11532(Top 79%)11532(Top 1869%)
30K18.64 mi3.11 mi18374+89711296+48411296+48414227(Top 56%)9205(Top 63%)9205(Top 1492%)
20M20.00 mi1.36 mi17866+50811039+25711039+25710930(Top 43%)7477(Top 51%)7477(Top 1212%)
21M21.00 mi1.00 mi17419+44710824+21510824+2159353(Top 37%)6464(Top 44%)6464(Top 1048%)
35K21.75 mi0.75 mi17267+15210732+9210732+9213622(Top 53%)8471(Top 58%)8471(Top 1373%)
23M23.00 mi1.25 mi16957+31010568+16410568+16411953(Top 47%)7551(Top 52%)7551(Top 1224%)
24M24.00 mi1.00 mi16665+29210422+14610422+1469356(Top 37%)6230(Top 43%)6230(Top 1010%)
40K24.85 mi0.85 mi16507+15810323+9910323+9913159(Top 52%)8008(Top 55%)8008(Top 1298%)
25.2M25.20 mi0.35 mi16356+15110240+8310240+838234(Top 32%)5463(Top 37%)5463(Top 885%)
Finish26.22 mi1.02 mi16215+14110151+8910151+8911819(Top 46%)7422(Top 51%)7422(Top 1203%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

17909

Males

11203

M65-69

11203

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22025

Males

13051

M65-69

13051

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

17909

Males

11203

M65-69

11203

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

17705

Males

11125

M65-69

11125

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16109

Males

10386

M65-69

10386

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

18886

Males

11532

M65-69

11532

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

14227

Males

9205

M65-69

9205

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

10930

Males

7477

M65-69

7477

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9353

Males

6464

M65-69

6464

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

13622

Males

8471

M65-69

8471

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

11953

Males

7551

M65-69

7551

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9356

Males

6230

M65-69

6230

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13159

Males

8008

M65-69

8008

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8234

Males

5463

M65-69

5463

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

11819

Males

7422

M65-69

7422

Passing Analysis

Category:
Athletes Passed
5066
Passed By
1687
Net Change
+3379
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19594
5K10K191476-1457#19594#21051
10K15K9232+921#21051#20130
15K20K65015+635#20130#19495
20KHalf1500+150#19495#19345
Half25K220146+74#19345#19271
25K30K8992+897#19271#18374
30K20M5080+508#18374#17866
20M21M4470+447#17866#17419
21M35K16210+152#17419#17267
35K23M3144+310#17267#16957
23M24M2920+292#16957#16665
24M40K18123+158#16665#16507
40K25.2M1532+151#16507#16356
25.2MFinish1487+141#16356#16215
TOTALS50661687+3379
📊

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