Zhisong Ji

Southborough, MA

Bib: 14558 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 33%
Gender (Female)
#0 / 12338
Top 25%
Masters (Masters Women)
#0 / 5451
Top 16%
Division (F55-59)
#0 / 873
Top 9%
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
10:11/mi
31:37
279164
10K· 6.21 mi
9:17/mi
1:00:26
103217
15K· 9.32 mi
9:17/mi
1:29:16
5155
21K· 13.05 mi
9:40/mi
2:05:19
2037
25K· 15.53 mi
9:43/mi
2:29:28
35
30K· 18.64 mi
10:02/mi
3:00:39
5857
35K· 21.75 mi
10:00/mi
3:31:44
9892
40K· 24.85 mi
10:04/mi
4:02:59
3653
Finish· 26.22 mi
10:45/mi
4:17:39
8024
Course Elevation
3237 ft
×20story building
764 ft climb · 717 ft descent

The Course

Half Splits

1st Half· via 21K
2:05:199:36 /mi⚡ faster
2nd Half
2:12:2010:03 /mi+5.6%
Positive split — 5.6% 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
31:3710:113.11 mi31:37
10:11
-
10K
1:00:269:443.10 mi28:49
9:17
-0:54
15K
1:29:169:353.11 mi28:50
9:17
0:00
21K
2:05:199:363.73 mi36:03
9:40
+0:23
25K
2:29:289:372.48 mi24:09
9:43
+0:03
30K
3:00:399:413.11 mi31:11
10:02
+0:19
35K
3:31:449:443.11 mi31:05
10:00
-0:02
40K
4:02:599:473.10 mi31:15
10:04
+0:04
Finish(26.22 mi)
4:17:399:501.37 mi14:40
10:45
+0:41
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:17 /mi

Average Pace

9:50 /mi

Slowest Pace

10:45 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

4:02:59

94% of race

Time at Steady Pace

14:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:50 /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. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi12724378011410719297474
10K3.10 mi11896+8283427+353102+1211162312687
15K3.11 mi11450+4463259+16894+810719297474
21K3.73 mi11368+823230+2992+211511333698
25K2.48 mi11385-173262-3291+1122093768113
30K3.11 mi11121+2643230+3290+110690332895
35K3.11 mi10550+5713120+11081+99133293271
40K3.10 mi9914+6362988+13276+57913267866
Finish(26.22 mi)1.37 mi9923-93028-4077-1109054099113

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×18story building
+279ft-164ft

Overall

10719

Females

2974

F55-59

2974

5K→10K

3.1 - 6.2 mi

Top 37%
×11story building
+103ft-217ft

Overall

11162

Females

3126

F55-59

3126

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+51ft-55ft

Overall

10719

Females

2974

F55-59

2974

15K→21K

9.3 - 13.1 mi

Top 38%
×1story
+20ft-37ft

Overall

11511

Females

3336

F55-59

3336

21K→25K

13.1 - 15.5 mi

Top 41%
×2story building
+35ft-8ft

Overall

12209

Females

3768

F55-59

3768

25K→30K

15.5 - 18.6 mi

Top 36%
×2story building
+58ft-57ft

Overall

10690

Females

3328

F55-59

3328

30K→35K

18.6 - 21.8 mi

Top 30%
×2story building
+98ft-92ft

Overall

9133

Females

2932

F55-59

2932

35K→40K

21.8 - 24.9 mi

Top 26%
×2story building
+36ft-53ft

Overall

7913

Females

2678

F55-59

2678

40K→Finish

24.9 - 26.2 mi

Top 36%
×5story building
+80ft-24ft

Overall

10905

Females

4099

F55-59

4099

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#12724
5K10K
95923*+828
#12724 #11896
10K15K
88534*+446
#11896 #11450
15K21K
243325*+82
#11450 #11368
21K25K
252235*-17
#11368 #11385
25K30K
161425*+264
#11385 #11121
30K35K
86657*+571
#11121 #10550
35K40K
52688*+636
#10550 #9914
40KFinish
134125*-9
#9914 #9923
TOTALS
11113912*+2801
#12724 #9923

* 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