Jeff Dalzell

Bib: 22979M

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:02
Rank: #23399
Start5K
31:02 | 9:59/mi
10K· 6.21 mi
59:15
Rank: #22416 (+983)
5K10K
28:13 | 9:05/mi
15K· 9.32 mi
1:28:50
Rank: #22402 (+14)
10K15K
29:35 | 9:31/mi
20K· 12.43 mi
1:59:53
Rank: #22542 (-140)
15K20K
31:03 | 10:00/mi
Half· 13.11 mi
2:06:02
Rank: #22447 (+95)
20KHalf
6:09 | 9:01/mi
25K· 15.53 mi
2:28:30
Rank: #22052 (+395)
Half25K
22:28 | 9:16/mi
30K· 18.64 mi
3:00:16
Rank: #21974 (+78)
25K30K
31:46 | 10:13/mi
20M
3:13:17
Rank: #21773 (+201)
30K20M
13:01 | 9:35/mi
21M
3:23:24
Rank: #21604 (+169)
20M21M
10:07 | 10:07/mi
35K· 21.75 mi
3:30:46
Rank: #21576 (+28)
21M35K
7:22 | 9:51/mi
23M
3:45:55
Rank: #21815 (-239)
35K23M
15:09 | 12:06/mi
24M
3:55:24
Rank: #21705 (+110)
23M24M
9:29 | 9:29/mi
40K· 24.85 mi
4:03:27
Rank: #21586 (+119)
24M40K
8:03 | 9:25/mi
25.2M
4:06:53
Rank: #21521 (+65)
40K25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
4:16:14
Rank: #21423 (+98)
25.2MFinish
9:21 | 9:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:02
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:10:12
Pace9:56 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:5431:029:5931:02
9:59
-
10K
6.21 mi11:53:0759:159:3228:13
9:05
-0:54
15K
9.32 mi12:22:421:28:509:3229:35
9:31
+0:26
20K
12.43 mi12:53:451:59:539:3931:03
10:00
+0:29
Half
13.11 mi12:59:542:06:029:376:09
9:01
-0:59
25K
15.53 mi13:22:222:28:309:3422:28
9:16
+0:15
30K
18.64 mi13:54:083:00:169:4031:46
10:13
+0:57
20M
20.00 mi14:07:093:13:179:4013:01
9:35
-0:38
21M
21.00 mi14:17:163:23:249:4110:07
10:07
+0:32
35K
21.75 mi14:24:383:30:469:417:22
9:51
-0:16
23M
23.00 mi14:39:473:45:559:4915:09
12:06
+2:15
24M
24.00 mi14:49:163:55:249:499:29
9:29
-2:37
40K
24.85 mi14:57:194:03:279:488:03
9:25
-0:04
25.2M
25.20 mi15:00:454:06:539:483:26
9:57
+0:32
Finish
26.22 mi15:10:064:16:149:479:21
9:11
-0:46

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

9:01 /mi

Average Pace

9:47 /mi

Slowest Pace

12:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

43:43

17% of race

Time at Steady Pace

1:29:58

35% of race

Time at Slower Pace

2:02:33

48% of race

Average Pace: 9:46 /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 mi11:24:5431:029:5931:02
9:59
#23399
10K
6.21 mi11:53:0759:159:3228:13
9:05
#22416
15K
9.32 mi12:22:421:28:509:3229:35
9:31
#22402
20K
12.43 mi12:53:451:59:539:3931:03
10:00
#22542
Half
13.11 mi12:59:542:06:029:376:09
9:01
#22447
25K
15.53 mi13:22:222:28:309:3422:28
9:16
#22052
30K
18.64 mi13:54:083:00:169:4031:46
10:13
#21974
20M
20.00 mi14:07:093:13:179:4013:01
9:35
#21773
21M
21.00 mi14:17:163:23:249:4110:07
10:07
#21604
35K
21.75 mi14:24:383:30:469:417:22
9:51
#21576
23M
23.00 mi14:39:473:45:559:4915:09
12:06
#21815
24M
24.00 mi14:49:163:55:249:499:29
9:29
#21705
40K
24.85 mi14:57:194:03:279:488:03
9:25
#21586
25.2M
25.20 mi15:00:454:06:539:483:26
9:57
#21521
Finish
26.22 mi15:10:064:16:149:479:21
9:11
#21423
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi23399137741377422316(Top 84%)13325(Top 88%)13325(Top 2427%)
10K6.21 mi3.10 mi22416+98313334+44013334+44021199(Top 80%)12795(Top 84%)12795(Top 2331%)
15K9.32 mi3.11 mi22402+1413337-313337-322316(Top 84%)13325(Top 88%)13325(Top 2427%)
20K12.43 mi3.11 mi22542-14013409-7213409-7222892(Top 86%)13571(Top 89%)13571(Top 2472%)
Half13.11 mi0.68 mi22447+9513366+4313366+4320487(Top 77%)12512(Top 82%)12512(Top 2279%)
25K15.53 mi2.42 mi22052+39513176+19013176+19020077(Top 75%)12320(Top 81%)12320(Top 2244%)
30K18.64 mi3.11 mi21974+7813131+4513131+4521574(Top 81%)12886(Top 85%)12886(Top 2347%)
20M20.00 mi1.36 mi21773+20113033+9813033+9819149(Top 72%)11756(Top 77%)11756(Top 2141%)
21M21.00 mi1.00 mi21604+16912949+8412949+8418450(Top 69%)11410(Top 75%)11410(Top 2078%)
35K21.75 mi0.75 mi21576+2812930+1912930+1920862(Top 78%)12421(Top 82%)12421(Top 2262%)
23M23.00 mi1.25 mi21815-23913023-9313023-9324128(Top 91%)13906(Top 92%)13906(Top 2533%)
24M24.00 mi1.00 mi21705+11012953+7012953+7019147(Top 72%)11600(Top 76%)11600(Top 2113%)
40K24.85 mi0.85 mi21586+11912891+6212891+6218022(Top 68%)11050(Top 73%)11050(Top 2013%)
25.2M25.20 mi0.35 mi21521+6512858+3312858+3317180(Top 65%)10649(Top 70%)10649(Top 1940%)
Finish26.22 mi1.02 mi21423+9812801+5712801+5718799(Top 71%)11451(Top 75%)11451(Top 2086%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21stories
+97ft-345ft

Overall

22316

Males

13325

M65-69

13325

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

21199

Males

12795

M65-69

12795

10K→15K

6.2 - 9.3 mi

Top 84%
×3stories
+67ft-78ft

Overall

22316

Males

13325

M65-69

13325

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

22892

Males

13571

M65-69

13571

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

20487

Males

12512

M65-69

12512

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

20077

Males

12320

M65-69

12320

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

21574

Males

12886

M65-69

12886

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19149

Males

11756

M65-69

11756

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

18450

Males

11410

M65-69

11410

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

20862

Males

12421

M65-69

12421

35K→23M

21.8 - 23.0 mi

Top 91%
×5stories
+23ft-63ft

Overall

24128

Males

13906

M65-69

13906

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

19147

Males

11600

M65-69

11600

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18022

Males

11050

M65-69

11050

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17180

Males

10649

M65-69

10649

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

18799

Males

11451

M65-69

11451

Passing Analysis

Category:
Athletes Passed
2768
Passed By
792
Net Change
+1976
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23399
5K10K99815+983#23399#22416
10K15K160146+14#22416#22402
15K20K88228-140#22402#22542
20KHalf961+95#22542#22447
Half25K3961+395#22447#22052
25K30K17698+78#22052#21974
30K20M2065+201#21974#21773
20M21M1734+169#21773#21604
21M35K4618+28#21604#21576
35K23M21260-239#21576#21815
23M24M1111+110#21815#21705
24M40K1223+119#21705#21586
40K25.2M672+65#21586#21521
25.2MFinish10810+98#21521#21423
TOTALS2768792+1976
📊

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