Xiaofeng Li

Libertyville

Bib: 18408 F

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 54109

Gender (Female)

#0 / 24561

Top 45%

Masters (Masters Women)

#0 / 9409

Top 42%

Division (F50-54)

#0 / 1771

Top 39%

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

9:10/mi

28:29

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

9:38/mi

58:24

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

9:39/mi

1:28:23

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

9:43/mi

1:58:34

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

9:42/mi

2:05:11

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

9:23/mi

2:27:55

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

9:57/mi

2:58:49

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

10:23/mi

3:31:04

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

11:13/mi

4:05:54

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

14:21/mi

4:25:29

↑ 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

2:05:119:33 /mi⚡ faster

2nd Half

2:20:1810:42 /mi+12.1%

Positive split — 12.1% slower in the second half

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	28:29	9:10	3.11 mi	28:29	9:10	-
10K	58:24	9:24	3.10 mi	29:55	9:38	+0:28
15K	1:28:23	9:29	3.11 mi	29:59	9:39	+0:01
20K	1:58:34	9:32	3.11 mi	30:11	9:43	+0:04
Half(13.11 mi)	2:05:11	9:33	0.68 mi	6:37	9:42	-0:01
25K	2:27:55	9:31	2.42 mi	22:44	9:23	-0:19
30K	2:58:49	9:36	3.11 mi	30:54	9:57	+0:34
35K	3:31:04	9:42	3.11 mi	32:15	10:23	+0:26
40K	4:05:54	9:54	3.10 mi	34:50	11:13	+0:50
Finish(26.22 mi)	4:25:29	10:08	1.37 mi	19:35	14:21	+3:08

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:10 /mi

Average Pace

10:08 /mi

Slowest Pace

14:21 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:31:04

80% of race

Time at Slower Pace

54:25

20% of race

Average Pace: 10:08 /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	F50-54	Seg. Overall	Seg. Females	Seg. F50-54
5K	3.11 mi	27611	8919	576	33791	11890	762
10K	3.10 mi	29911-2300	9990-1071	643-67	32071	11093	720
15K	3.11 mi	31275-1364	10641-651	689-46	33791	11890	762
20K	3.11 mi	31468-193	10730-89	685+4	32227	11144	700
Half(13.11 mi)	0.68 mi	31315+153	10673+57	675+10	29934	10121	618
25K	2.42 mi	30568+747	10354+319	647+28	27599	9041	544
30K	3.11 mi	29975+593	10162+192	630+17	28499	9826	605
35K	3.11 mi	29496+479	10087+75	625+5	28596	10412	642
40K	3.10 mi	29343+153	10258-171	642-17	29793	11829	759
Finish(26.22 mi)	1.37 mi	30843-1500	11100-842	698-56	49462	22159	1536

22159

Passing Analysis

No position changes recorded for this athlete.

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Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Chicago Event Management

Race timed by

Mika Timing