Bill Cosper

Bib: 27111M

FL

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
26:27
Rank: #17642
Start5K
8:31/mi
26:27 split
10K· 6.21 mi
56:11
Rank: #20809 (-3167)
5K10K
9:34/mi
29:44 split
15K· 9.32 mi
1:22:52
Rank: #20074 (+735)
10K15K
8:35/mi
26:41 split
20K· 12.43 mi
1:50:38
Rank: #19866 (+208)
15K20K
8:56/mi
27:46 split
Half· 13.11 mi
1:56:50
Rank: #19910 (-44)
20KHalf
9:05/mi
6:12 split
25K· 15.53 mi
2:22:15
Rank: #20792 (-882)
Half25K
10:29/mi
25:25 split
30K· 18.64 mi
2:55:42
Rank: #21248 (-456)
25K30K
10:46/mi
33:27 split
20M
3:11:36
Rank: #21544 (-296)
30K20M
11:42/mi
15:54 split
21M
3:24:11
Rank: #21723 (-179)
20M21M
12:35/mi
12:35 split
35K· 21.75 mi
3:33:11
Rank: #21904 (-181)
21M35K
12:02/mi
9:00 split
23M
3:47:59
Rank: #22036 (-132)
35K23M
11:49/mi
14:48 split
24M
3:59:22
Rank: #22115 (-79)
23M24M
11:23/mi
11:23 split
40K· 24.85 mi
4:09:08
Rank: #22164 (-49)
24M40K
11:25/mi
9:46 split
25.2M
4:13:18
Rank: #22172 (-8)
40K25.2M
12:05/mi
4:10 split
Finish· 26.22 mi
4:24:21
Rank: #22251 (-79)
25.2MFinish
10:51/mi
11:03 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:50
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:27:31
Pace11:15 /mi
📊Positive Split: 26.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:3426:278:3126:27
8:31
-
10K
6.21 mi12:17:1856:119:0329:44
9:34
+1:03
15K
9.32 mi12:43:591:22:528:5326:41
8:35
-0:59
20K
12.43 mi13:11:451:50:388:5427:46
8:56
+0:21
Half
13.11 mi13:17:571:56:508:556:12
9:05
+0:09
25K
15.53 mi13:43:222:22:159:0925:25
10:29
+1:24
30K
18.64 mi14:16:492:55:429:2633:27
10:46
+0:17
20M
20.00 mi14:32:433:11:369:3515:54
11:42
+0:56
21M
21.00 mi14:45:183:24:119:4312:35
12:35
+0:53
35K
21.75 mi14:54:183:33:119:489:00
12:02
-0:33
23M
23.00 mi15:09:063:47:599:5514:48
11:49
-0:13
24M
24.00 mi15:20:293:59:229:5811:23
11:23
-0:26
40K
24.85 mi15:30:154:09:0810:019:46
11:25
+0:02
25.2M
25.20 mi15:34:254:13:1810:034:10
12:05
+0:40
Finish
26.22 mi15:45:284:24:2110:0511:03
10:51
-1:14

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

8:31 /mi

Average Pace

10:05 /mi

Slowest Pace

12:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:50

44% of race

Time at Steady Pace

1:31:04

34% of race

Time at Slower Pace

56:27

21% of race

Average Pace: 10:05 /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 mi11:47:3426:278:3126:27
8:31
#17642
10K
6.21 mi12:17:1856:119:0329:44
9:34
#20809
15K
9.32 mi12:43:591:22:528:5326:41
8:35
#20074
20K
12.43 mi13:11:451:50:388:5427:46
8:56
#19866
Half
13.11 mi13:17:571:56:508:556:12
9:05
#19910
25K
15.53 mi13:43:222:22:159:0925:25
10:29
#20792
30K
18.64 mi14:16:492:55:429:2633:27
10:46
#21248
20M
20.00 mi14:32:433:11:369:3515:54
11:42
#21544
21M
21.00 mi14:45:183:24:119:4312:35
12:35
#21723
35K
21.75 mi14:54:183:33:119:489:00
12:02
#21904
23M
23.00 mi15:09:063:47:599:5514:48
11:49
#22036
24M
24.00 mi15:20:293:59:229:5811:23
11:23
#22115
40K
24.85 mi15:30:154:09:0810:019:46
11:25
#22164
25.2M
25.20 mi15:34:254:13:1810:034:10
12:05
#22172
Finish
26.22 mi15:45:284:24:2110:0511:03
10:51
#22251
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi17642112881128818362(Top 69%)11634(Top 77%)11634(Top 818%)
10K6.21 mi3.10 mi20809-316712581-129312581-129322706(Top 85%)13491(Top 89%)13491(Top 949%)
15K9.32 mi3.11 mi20074+73512274+30712274+30718362(Top 69%)11634(Top 77%)11634(Top 818%)
20K12.43 mi3.11 mi19866+20812207+6712207+6719400(Top 73%)12058(Top 79%)12058(Top 848%)
Half13.11 mi0.68 mi19910-4412219-1212219-1220784(Top 78%)12651(Top 83%)12651(Top 890%)
25K15.53 mi2.42 mi20792-88212629-41012629-41023163(Top 87%)13668(Top 90%)13668(Top 961%)
30K18.64 mi3.11 mi21248-45612808-17912808-17922723(Top 85%)13390(Top 88%)13390(Top 942%)
20M20.00 mi1.36 mi21544-29612934-12612934-12623808(Top 89%)13816(Top 91%)13816(Top 972%)
21M21.00 mi1.00 mi21723-17913001-6713001-6723553(Top 88%)13693(Top 90%)13693(Top 963%)
35K21.75 mi0.75 mi21904-18113081-8013081-8024704(Top 93%)14174(Top 93%)14174(Top 997%)
23M23.00 mi1.25 mi22036-13213126-4513126-4523742(Top 89%)13741(Top 91%)13741(Top 966%)
24M24.00 mi1.00 mi22115-7913150-2413150-2423706(Top 89%)13676(Top 90%)13676(Top 962%)
40K24.85 mi0.85 mi22164-4913168-1813168-1823084(Top 87%)13354(Top 88%)13354(Top 939%)
25.2M25.20 mi0.35 mi22172-813164+413164+422627(Top 85%)13140(Top 87%)13140(Top 924%)
Finish26.22 mi1.02 mi22251-7913192-2813192-2823679(Top 89%)13657(Top 90%)13657(Top 960%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18362

Males

11634

M55-59

11634

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22706

Males

13491

M55-59

13491

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18362

Males

11634

M55-59

11634

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

19400

Males

12058

M55-59

12058

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

20784

Males

12651

M55-59

12651

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

23163

Males

13668

M55-59

13668

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22723

Males

13390

M55-59

13390

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

23808

Males

13816

M55-59

13816

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

23553

Males

13693

M55-59

13693

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

24704

Males

14174

M55-59

14174

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

23742

Males

13741

M55-59

13741

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23706

Males

13676

M55-59

13676

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23084

Males

13354

M55-59

13354

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22627

Males

13140

M55-59

13140

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

23679

Males

13657

M55-59

13657

Passing Analysis

Category:
Athletes Passed
1239
Passed By
5848
Net Change
-4609
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17642
5K10K73174-3167#17642#20809
10K15K74510+735#20809#20074
15K20K28173+208#20074#19866
20KHalf1963-44#19866#19910
Half25K7889-882#19910#20792
25K30K44500-456#20792#21248
30K20M22318-296#21248#21544
20M21M15194-179#21544#21723
21M35K5186-181#21723#21904
35K23M24156-132#21904#22036
23M24M24103-79#22036#22115
24M40K2271-49#22115#22164
40K25.2M1321-8#22164#22172
25.2MFinish1190-79#22172#22251
TOTALS12395848-4609
📊

Passing Visuals

Category:
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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