Britt Dunn

Winchester, MA

Bib: 9191 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 15907
Top 38%
Gender (Female)
#0 / 5973
Top 29%
Masters (Masters Women)
#0 / 2230
Top 18%
Division (F40-44)
#0 / 707
Top 26%
Race Day Weather
43°/33°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:01/mi
31:08
279164
10K· 6.21 mi
9:29/mi
1:00:37
103217
15K· 9.32 mi
9:27/mi
1:29:58
5155
21K· 13.05 mi
9:34/mi
2:05:38
2037
25K· 15.53 mi
9:04/mi
2:28:11
35
30K· 18.64 mi
9:45/mi
2:58:27
5857
35K· 21.75 mi
9:59/mi
3:29:28
9892
40K· 24.85 mi
10:27/mi
4:01:57
3653
Finish· 26.22 mi
10:02/mi
4:15:38
8024
Course Elevation
3237 ft
×20story building
764 ft climb · 717 ft descent

The Course

Half Splits

1st Half· via 21K
2:05:389:38 /mi⚡ faster
2nd Half
2:10:009:52 /mi+3.5%
Positive split — 3.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
31:0810:013.11 mi31:08
10:01
-
10K
1:00:379:453.10 mi29:29
9:29
-0:32
15K
1:29:589:393.11 mi29:21
9:27
-0:02
21K
2:05:389:383.73 mi35:40
9:34
+0:07
25K
2:28:119:322.48 mi22:33
9:04
-0:30
30K
2:58:279:343.11 mi30:16
9:45
+0:41
35K
3:29:289:383.11 mi31:01
9:59
+0:14
40K
4:01:579:443.10 mi32:29
10:27
+0:28
Finish(26.22 mi)
4:15:389:451.37 mi13:41
10:02
-0:25
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:04 /mi

Average Pace

9:45 /mi

Slowest Pace

10:27 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:27:19

58% of race

Time at Steady Pace

1:48:19

42% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:45 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi7819214723868131758194
10K3.10 mi7852-332142+5237+178842133235
15K3.11 mi7457+3951996+146220+1768131758194
21K3.73 mi7199+2581907+89209+1167661763193
25K2.48 mi6846+3531797+110201+857321488154
30K3.11 mi6558+2881748+49195+657241539162
35K3.11 mi6301+2571714+34184+1157551721188
40K3.10 mi6088+2131708+618458161916207
Finish(26.22 mi)1.37 mi5973+1151691+17179+552231679179

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×18story building
+279ft-164ft

Overall

6813

Females

1758

F40-44

1758

5K→10K

3.1 - 6.2 mi

Top 50%
×11story building
+103ft-217ft

Overall

7884

Females

2133

F40-44

2133

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+51ft-55ft

Overall

6813

Females

1758

F40-44

1758

15K→21K

9.3 - 13.1 mi

Top 43%
×1story
+20ft-37ft

Overall

6766

Females

1763

F40-44

1763

21K→25K

13.1 - 15.5 mi

Top 36%
×2story building
+35ft-8ft

Overall

5732

Females

1488

F40-44

1488

25K→30K

15.5 - 18.6 mi

Top 36%
×2story building
+58ft-57ft

Overall

5724

Females

1539

F40-44

1539

30K→35K

18.6 - 21.8 mi

Top 36%
×2story building
+98ft-92ft

Overall

5755

Females

1721

F40-44

1721

35K→40K

21.8 - 24.9 mi

Top 37%
×2story building
+36ft-53ft

Overall

5816

Females

1916

F40-44

1916

40K→Finish

24.9 - 26.2 mi

Top 33%
×5story building
+80ft-24ft

Overall

5223

Females

1679

F40-44

1679

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#7819
5K10K
237204*-33
#7819 #7852
10K15K
27422*+395
#7852 #7457
15K21K
64322*+258
#7457 #7199
21K25K
6359*+353
#7199 #6846
25K30K
54342*+288
#6846 #6558
30K35K
82339*+257
#6558 #6301
35K40K
97310*+213
#6301 #6088
40KFinish
31146*+115
#6088 #5973
TOTALS
5982444*+1846
#7819 #5973

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

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

U.S. Marine Corps Community Services (MCCS)

Timing Productions