Nathan Mcgrew

Bib: 8879M

IA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M40-44)
#0 / 2009
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:33
Rank: #13896
Start5K
24:33 | 7:54/mi
10K· 6.21 mi
49:47
Rank: #14503 (-607)
5K10K
25:14 | 8:07/mi
15K· 9.32 mi
1:17:16
Rank: #15846 (-1343)
10K15K
27:29 | 8:51/mi
20K· 12.43 mi
1:44:38
Rank: #15940 (-94)
15K20K
27:22 | 8:49/mi
Half· 13.11 mi
1:50:46
Rank: #16070 (-130)
20KHalf
6:08 | 8:59/mi
25K· 15.53 mi
2:16:45
Rank: #17384 (-1314)
Half25K
25:59 | 10:43/mi
30K· 18.64 mi
2:55:22
Rank: #19045 (-1661)
25K30K
38:37 | 12:26/mi
20M
3:12:38
Rank: #19438 (-393)
30K20M
17:16 | 12:42/mi
21M
3:24:53
Rank: #19421 (+17)
20M21M
12:15 | 12:15/mi
35K· 21.75 mi
3:33:56
Rank: #19518 (-97)
21M35K
9:03 | 12:06/mi
23M
3:50:01
Rank: #19731 (-213)
35K23M
16:05 | 12:51/mi
24M
4:02:06
Rank: #19821 (-90)
23M24M
12:05 | 12:05/mi
40K· 24.85 mi
4:12:36
Rank: #19881 (-60)
24M40K
10:30 | 12:17/mi
25.2M
4:18:00
Rank: #19965 (-84)
40K25.2M
5:24 | 15:40/mi
Finish· 26.22 mi
4:28:17
Rank: #19916 (+49)
25.2MFinish
10:17 | 10:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:46
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time2:37:31
Pace12:01 /mi
📊Positive Split: 42.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5124:337:5424:33
7:54
-
10K
6.21 mi11:18:0549:478:0125:14
8:07
+0:13
15K
9.32 mi11:45:341:17:168:1727:29
8:51
+0:44
20K
12.43 mi12:12:561:44:388:2527:22
8:49
-0:02
Half
13.11 mi12:19:041:50:468:276:08
8:59
+0:10
25K
15.53 mi12:45:032:16:458:4825:59
10:43
+1:44
30K
18.64 mi13:23:402:55:229:2438:37
12:26
+1:43
20M
20.00 mi13:40:563:12:389:3817:16
12:42
+0:16
21M
21.00 mi13:53:113:24:539:4512:15
12:15
-0:27
35K
21.75 mi14:02:143:33:569:509:03
12:06
-0:09
23M
23.00 mi14:18:193:50:0110:0016:05
12:51
+0:45
24M
24.00 mi14:30:244:02:0610:0512:05
12:05
-0:46
40K
24.85 mi14:40:544:12:3610:1010:30
12:17
+0:12
25.2M
25.20 mi14:46:184:18:0010:145:24
15:40
+3:23
Finish
26.22 mi14:56:354:28:1710:1410:17
10:05
-5:35

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

7:54 /mi

Average Pace

10:14 /mi

Slowest Pace

15:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:02

55% of race

Time at Steady Pace

1:55:51

43% of race

Time at Slower Pace

5:24

2% of race

Average Pace: 10:14 /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 mi10:52:5124:337:5424:33
7:54
#13896
10K
6.21 mi11:18:0549:478:0125:14
8:07
#14503
15K
9.32 mi11:45:341:17:168:1727:29
8:51
#15846
20K
12.43 mi12:12:561:44:388:2527:22
8:49
#15940
Half
13.11 mi12:19:041:50:468:276:08
8:59
#16070
25K
15.53 mi12:45:032:16:458:4825:59
10:43
#17384
30K
18.64 mi13:23:402:55:229:2438:37
12:26
#19045
20M
20.00 mi13:40:563:12:389:3817:16
12:42
#19438
21M
21.00 mi13:53:113:24:539:4512:15
12:15
#19421
35K
21.75 mi14:02:143:33:569:509:03
12:06
#19518
23M
23.00 mi14:18:193:50:0110:0016:05
12:51
#19731
24M
24.00 mi14:30:244:02:0610:0512:05
12:05
#19821
40K
24.85 mi14:40:544:12:3610:1010:30
12:17
#19881
25.2M
25.20 mi14:46:184:18:0010:145:24
15:40
#19965
Finish
26.22 mi14:56:354:28:1710:1410:17
10:05
#19916
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi138969616961618183(Top 71%)11345(Top 78%)11345(Top 565%)
10K6.21 mi3.10 mi14503-6079832-2169832-21615007(Top 59%)10037(Top 69%)10037(Top 500%)
15K9.32 mi3.11 mi15846-134310341-50910341-50918183(Top 71%)11345(Top 78%)11345(Top 565%)
20K12.43 mi3.11 mi15940-9410366-2510366-2516424(Top 64%)10555(Top 72%)10555(Top 525%)
Half13.11 mi0.68 mi16070-13010409-4310409-4318209(Top 71%)11285(Top 77%)11285(Top 562%)
25K15.53 mi2.42 mi17384-131410922-51310922-51320906(Top 82%)12447(Top 85%)12447(Top 620%)
30K18.64 mi3.11 mi19045-166111612-69011612-69022588(Top 88%)13100(Top 90%)13100(Top 652%)
20M20.00 mi1.36 mi19438-39311762-15011762-15022464(Top 88%)12925(Top 89%)12925(Top 643%)
21M21.00 mi1.00 mi19421+1711733+2911733+2919344(Top 76%)11316(Top 78%)11316(Top 563%)
35K21.75 mi0.75 mi19518-9711761-2811761-2821955(Top 86%)12579(Top 86%)12579(Top 626%)
23M23.00 mi1.25 mi19731-21311834-7311834-7322284(Top 87%)12739(Top 87%)12739(Top 634%)
24M24.00 mi1.00 mi19821-9011871-3711871-3721599(Top 85%)12315(Top 84%)12315(Top 613%)
40K24.85 mi0.85 mi19881-6011882-1111882-1120979(Top 82%)11950(Top 82%)11950(Top 595%)
25.2M25.20 mi0.35 mi19965-8411909-2711909-2723728(Top 93%)13419(Top 92%)13419(Top 668%)
Finish26.22 mi1.02 mi19916+4911871+3811871+3818720(Top 73%)10843(Top 74%)10843(Top 540%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

18183

Males

11345

M40-44

11345

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

15007

Males

10037

M40-44

10037

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

18183

Males

11345

M40-44

11345

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

16424

Males

10555

M40-44

10555

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18209

Males

11285

M40-44

11285

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

20906

Males

12447

M40-44

12447

25K→30K

15.5 - 18.6 mi

Top 88%
×9stories
+181ft-148ft

Overall

22588

Males

13100

M40-44

13100

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

22464

Males

12925

M40-44

12925

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

19344

Males

11316

M40-44

11316

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

21955

Males

12579

M40-44

12579

35K→23M

21.8 - 23.0 mi

Top 87%
×5stories
+23ft-63ft

Overall

22284

Males

12739

M40-44

12739

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

21599

Males

12315

M40-44

12315

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

20979

Males

11950

M40-44

11950

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

23728

Males

13419

M40-44

13419

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

18720

Males

10843

M40-44

10843

Passing Analysis

Category:
Athletes Passed
816
Passed By
6836
Net Change
-6020
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13896
5K10K114721-607#13896#14503
10K15K321375-1343#14503#15846
15K20K224318-94#15846#15940
20KHalf14144-130#15940#16070
Half25K351349-1314#16070#17384
25K30K281689-1661#17384#19045
30K20M23416-393#19045#19438
20M21M8972+17#19438#19421
21M35K26123-97#19421#19518
35K23M49262-213#19518#19731
23M24M44134-90#19731#19821
24M40K44104-60#19821#19881
40K25.2M1296-84#19881#19965
25.2MFinish8233+49#19965#19916
TOTALS8166836-6020
📊

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