Yijing Chen

Mason

Bib: 37243 F

Masters

0:00

0:00

/ mi

Masters

Be the first to cheer!

Overall

#0 / 54109

Gender (Female)

#0 / 24561

Top 40%

Masters (Masters Women)

#0 / 9409

Top 37%

Division (F55-59)

#0 / 1120

Top 32%

Race Day Weather

54°/44°F

few clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

600 ft elev

5K· 3.11 mi

8:39/mi

26:54

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

8:45/mi

54:05

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

8:36/mi

1:20:49

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

8:50/mi

1:48:15

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

8:55/mi

1:54:20

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

8:56/mi

2:15:59

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

9:16/mi

2:44:46

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

10:50/mi

3:18:25

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

13:13/mi

3:59:30

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

13:29/mi

4:17:53

↑ 23 ft↓ 20 ft

606 ft elev

Course Elevation

227ft

Total climb

32ft

Range

589 to 621 ft

221ft

Total descent

About the height of a three-story building

The Course

Half Splits

1st Half· via Half

1:54:208:43 /mi⚡ faster

2nd Half

2:23:3310:57 /mi+25.6%

Positive split — 25.6% slower in the second half

AI Race Performance Report

Yijing's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

Free account · no payment

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	26:54	8:39	3.11 mi	26:54	8:39	-
10K	54:05	8:42	3.10 mi	27:11	8:45	+0:06
15K	1:20:49	8:40	3.11 mi	26:44	8:36	-0:09
20K	1:48:15	8:43	3.11 mi	27:26	8:50	+0:14
Half(13.11 mi)	1:54:20	8:43	0.68 mi	6:05	8:55	+0:05
25K	2:15:59	8:45	2.42 mi	21:39	8:56	+0:01
30K	2:44:46	8:50	3.11 mi	28:47	9:16	+0:20
35K	3:18:25	9:07	3.11 mi	33:39	10:50	+1:34
40K	3:59:30	9:38	3.10 mi	41:05	13:13	+2:23
Finish(26.22 mi)	4:17:53	9:51	1.37 mi	18:23	13:29	+0:16

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:36 /mi

Average Pace

9:51 /mi

Slowest Pace

13:29 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:44:46

64% of race

Time at Slower Pace

1:33:07

36% of race

Average Pace: 9:50 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Females	F55-59	Seg. Overall	Seg. Females	Seg. F55-59
5K	3.11 mi	21433	6179	170	22700	6598	183
10K	3.10 mi	21904-471	6370-191	180-10	22571	6641	194
15K	3.11 mi	22082-178	6423-53	177+3	22700	6598	183
20K	3.11 mi	22377-295	6526-103	180-3	23436	6951	190
Half(13.11 mi)	0.68 mi	22359+18	6518+8	181-1	22686	6726	187
25K	2.42 mi	22390-31	6557-39	182-1	23230	7046	198
30K	3.11 mi	22391-1	6633-76	181+1	23626	7521	220
35K	3.11 mi	24464-2073	7715-1082	238-57	31330	11929	450
40K	3.10 mi	27287-2823	9224-1509	328-90	40213	17269	693
Finish(26.22 mi)	1.37 mi	28558-1271	9926-702	363-35	46874	20823	867

20823

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Yijing's race

Checkpoint splits, rankings, passing analysis and qualifying. One free sign-in reveals them here — and on every race you look up.

All Results

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Chicago Event Management

Race timed by

Mika Timing