Sarah Ernst

Medford, MA

Bib: 16885 F

0:00
0:00
/ mi
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Overall
#0 / 30047
Top 42%
Gender (Female)
#0 / 12338
Top 34%
Division (F25-29)
#0 / 2322
Top 45%
Race Day Weather
42°/32°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:09/mi
31:33
279164
10K· 6.21 mi
9:25/mi
1:00:48
103217
15K· 9.32 mi
9:33/mi
1:30:27
5155
21K· 13.05 mi
10:06/mi
2:08:08
2037
25K· 15.53 mi
10:18/mi
2:33:43
35
30K· 18.64 mi
10:55/mi
3:07:37
5857
35K· 21.75 mi
10:59/mi
3:41:45
9892
40K· 24.85 mi
11:06/mi
4:16:14
3653
Finish· 26.22 mi
10:56/mi
4:31:09
8024
Course Elevation
3237 ft
×20story building
764 ft climb · 717 ft descent

The Course

Half Splits

1st Half· via 21K
2:08:089:49 /mi⚡ faster
2nd Half
2:23:0010:51 /mi+11.6%
Positive split — 11.6% 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
31:3310:093.11 mi31:33
10:09
-
10K
1:00:489:473.10 mi29:15
9:25
-0:44
15K
1:30:279:423.11 mi29:39
9:33
+0:08
21K
2:08:089:493.73 mi37:41
10:06
+0:33
25K
2:33:439:542.48 mi25:35
10:18
+0:12
30K
3:07:3710:043.11 mi33:54
10:55
+0:37
35K
3:41:4510:123.11 mi34:08
10:59
+0:04
40K
4:16:1410:193.10 mi34:29
11:06
+0:07
Finish(26.22 mi)
4:31:0910:211.37 mi14:55
10:56
-0:10
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:25 /mi

Average Pace

10:21 /mi

Slowest Pace

11:06 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:33:43

57% of race

Time at Steady Pace

1:57:26

43% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:20 /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. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
5K3.11 mi125943735926121883556900
10K3.10 mi12299+2953596+139888+38120853485867
15K3.11 mi12202+973540+56887+1121883556900
21K3.73 mi12582-3803738-198950-631376242731069
25K2.48 mi12886-3043905-1671001-511498449951240
30K3.11 mi13099-2134088-1831038-371440549521208
35K3.11 mi12927+1724133-451043-51299247011154
40K3.10 mi12652+2754145-121051-81189944751100
Finish(26.22 mi)1.37 mi12543+1094137+810511164644241130

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×18story building
+279ft-164ft

Overall

12188

Females

3556

F25-29

3556

5K→10K

3.1 - 6.2 mi

Top 40%
×11story building
+103ft-217ft

Overall

12085

Females

3485

F25-29

3485

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+51ft-55ft

Overall

12188

Females

3556

F25-29

3556

15K→21K

9.3 - 13.1 mi

Top 46%
×1story
+20ft-37ft

Overall

13762

Females

4273

F25-29

4273

21K→25K

13.1 - 15.5 mi

Top 50%
×2story building
+35ft-8ft

Overall

14984

Females

4995

F25-29

4995

25K→30K

15.5 - 18.6 mi

Top 48%
×2story building
+58ft-57ft

Overall

14405

Females

4952

F25-29

4952

30K→35K

18.6 - 21.8 mi

Top 43%
×2story building
+98ft-92ft

Overall

12992

Females

4701

F25-29

4701

35K→40K

21.8 - 24.9 mi

Top 40%
×2story building
+36ft-53ft

Overall

11899

Females

4475

F25-29

4475

40K→Finish

24.9 - 26.2 mi

Top 39%
×5story building
+80ft-24ft

Overall

11646

Females

4424

F25-29

4424

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#12594
5K10K
239534*+295
#12594 #12299
10K15K
221318*+97
#12299 #12202
15K21K
586206*-380
#12202 #12582
21K25K
474170*-304
#12582 #12886
25K30K
487274*-213
#12886 #13099
30K35K
266438*+172
#13099 #12927
35K40K
220495*+275
#12927 #12652
40KFinish
61170*+109
#12652 #12543
TOTALS
25542605*+51
#12594 #12543

* 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