RIO DEL LAGO 100 MILE 2026

Amy Chinn

San Leandro, CA

Bib: 56 F 45

Masters

0:00

0:00

/ mi

Masters

2 comments

Overall

#0 / 194

Gender (Female)

#0 / 58

Masters (Masters Women)

#0 / 33

Division (F40-49)

#0 / 22

Race Day Weather

54°/44°F

clear sky

Race Performance Report

Amy Chinn · Rio Del Lago 100 2026

Personalized by MyRace AIReport Unlocked

Finish Time

29:04:47

Avg Pace

17:27 /mi

Overall Rank

153 / 194

Race Story

Analyzing your race…

Key Insights

Analyzing your race…

Pacing Breakdown

Pacing Efficiency

30

Pacing

The data shows a significant second-half slowdown relative to the first half.

Race Benchmarking

How the athlete stacked up against the field in this race.

Overall

Faster than 21%

153 of 194

of the field

Female

Faster than 33%

39 of 58

of this group

F45-49

Faster than 15%

11 of 13

of this group

Similar finishers

34

in 28:25:23-29:10:07

Analysis coverage: Strong — based on 14 timed segments, official finish results, field rankings. Timing data identifies patterns, but may not capture factors such as race goals, stops, fueling, or course conditions.

Timing Data Quality

67.7%Poor

72.3% Complete~27.7% Missed/Estimated

Across 13 intermediate timing checkpoints

Passing stats, segment rankings, and position data on this page use estimated times and may not reflect actual race positions.

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

489 ft elev

Beals Point 1· 0.45 mi

12:16/mi

5:31

↑ 10 ft0.4% grade

493 ft elev

Willow Creek· 9.28 mi

12:06/mi

1:52:18

↑ 346 ft↓ 695 ft0.7% grade

131 ft elev

Beals Point 2· 21.48 mi

14:27/mi

4:48:32

↑ 988 ft↓ 755 ft0.4% grade

377 ft elev

Granite Beach 1· 25.92 mi

14:59/mi

5:55:02

↑ 447 ft↓ 348 ft0.4% grade

475 ft elev

Rattlesnake Bar 1· 35.75 mi

15:25/mi

8:26:39

↑ 934 ft↓ 996 ft0.1% grade

419 ft elev

Overlook 1· 44.93 mi

17:37/mi

11:08:19

↑ 1348 ft↓ 554 ft1.6% grade

1,243 ft elev

No Hands 1· 49.17 mi

17:43/mi

12:23:26

↑ 140 ft↓ 829 ft3.1% grade

589 ft elev

ALT· 59.35 mi

18:23/mi

15:30:39

↑ 1610 ft↓ 686 ft1.7% grade

1,517 ft elev

Cool· 68.99 mi

20:25/mi

18:47:24

↑ 1291 ft↓ 1246 ft

1,570 ft elev

No Hands 2· 72.60 mi

15:56/mi

19:44:54

↓ 1037 ft5.0% grade

617 ft elev

Overlook 2· 76.84 mi

15:56/mi

20:52:25

↑ 851 ft↓ 135 ft3.2% grade

1,346 ft elev

Rattlesnake Bar 2· 86.02 mi

15:56/mi

23:18:37

↑ 531 ft↓ 1371 ft1.7% grade

505 ft elev

Granite Beach 2· 95.84 mi

15:56/mi

25:55:00

↑ 984 ft↓ 1017 ft

453 ft elev

Finish· 100.00 mi

15:56/mi

27:01:15

↑ 380 ft↓ 380 ft

453 ft elev

Course Elevation

10,075ft

Total climb

1,499ft

Range

92 to 1,591 ft

10,111ft

Total descent

About the height of five redwood trees

The Course

Half Splits

1st Half· via No Hands 1

12:23:2615:07 /mi⚡ faster

2nd Half

16:41:2119:42 /mi+34.7%

Positive split — 34.7% slower in the second half

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Trend	Diff
Beals Point 1	5:31	12:16	0.45 mi	5:31	12:16		-
Willow Creek(9.28 mi)	1:52:18	12:06	8.83 mi	1:46:47	12:06		-0:10
Beals Point 2(21.48 mi)	4:48:32	13:26	12.20 mi	2:56:14	14:27		+2:21
Granite Beach 1(25.92 mi)	5:55:02	13:42	4.44 mi	1:06:30	14:59		+0:32
Rattlesnake Bar 1(35.75 mi)	8:26:39	14:10	9.83 mi	2:31:37	15:25		+0:26
Overlook 1(44.93 mi)	11:08:19	14:52	9.18 mi	2:41:40	17:37		+2:12
No Hands 1(49.17 mi)	12:23:26	15:07	4.24 mi	1:15:07	17:43		+0:06
ALT(59.35 mi)	15:30:39	15:41	10.18 mi	3:07:13	18:23		+0:40
Cool(68.99 mi)	18:47:24	16:20	9.64 mi	3:16:45	20:25		+2:02
No Hands 2(72.60 mi)	19:44:54	16:19	3.61 mi	57:30	15:56		-4:29
Overlook 2(76.84 mi)	20:52:25	16:18	4.24 mi	1:07:32	15:56		0:00
Rattlesnake Bar 2(86.02 mi)	23:18:37	16:16	9.18 mi	2:26:12	15:56		0:00
Granite Beach 2(95.84 mi)	25:55:00	16:14	9.82 mi	2:36:23	15:56		0:00
Finish(100.00 mi)	27:01:15	16:13	4.16 mi	1:06:15	15:56		0:00

Trend:

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

12:06 /mi

Average Pace

16:13 /mi

Slowest Pace

20:25 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

4:48:32

18% of race

Time at Steady Pace

11:51:58

44% of race

Time at Slower Pace

10:20:45

38% of race

Average Pace: 16:13 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

Loading...

0mi25.0mi50.0mi75.0mi100.0mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Females	F40-49	Seg. Overall	Seg. Females	Seg. F40-49
Beals Point 1	0.45 mi	184	38	12	184	38	6
Willow Creek(9.28 mi)	8.83 mi	283-99	80-42	33-21	285	80	33
Beals Point 2(21.48 mi)	12.20 mi	298-15	85-5	34-1	310	87	34
Granite Beach 1(25.92 mi)	4.44 mi	295+3	87-2	35-1	276	78	31
Rattlesnake Bar 1(35.75 mi)	9.83 mi	269+26	77+10	28+7	209	53	18
Overlook 1(44.93 mi)	9.18 mi	246+23	71+6	24+4	187	51	21
No Hands 1(49.17 mi)	4.24 mi	238+8	67+4	23+1	169	47	17
ALT(59.35 mi)	10.18 mi	226+12	64+3	22+1	188	48	20
Cool(68.99 mi)	9.64 mi	211+15	57+7	21+1	184	50	19
No Hands 2(72.60 mi)	3.61 mi	190+21	52+5	18+3	65	26	11
Overlook 2(76.84 mi)	4.24 mi	184+6	51+1	18	115	33	12
Rattlesnake Bar 2(86.02 mi)	9.18 mi	182+2	51	18	155	45	14
Granite Beach 2(95.84 mi)	9.82 mi	181+1	50+1	17+1	158	45	14
Finish(100.00 mi)	4.16 mi	181	50	17	159	45	14

Segment Performance Analysis

Start → Beals Point 1

0.0 - 0.5 mi

Top 95%

489 ft499 ft

↑ 10ft↓ 0ft

10 ft

Overall

184

Females

38

F40-49

6

Beals Point 1→Willow Creek

0.5 - 9.3 mi

Top 147%

474 ft125 ft

↑ 346ft↓ 695ft

384 ft

Overall

285

Females

80

F40-49

21

Willow Creek→Beals Point 2

9.3 - 21.5 mi

Top 160%

144 ft377 ft

↑ 988ft↓ 755ft

279 ft

Overall

310

Females

87

F40-49

20

Beals Point 2→Granite Beach 1

21.5 - 25.9 mi

Top 142%

377 ft476 ft

↑ 447ft↓ 348ft

121 ft

Overall

276

Females

78

F40-49

17

Granite Beach 1→Rattlesnake Bar 1

25.9 - 35.8 mi

Top 108%

467 ft405 ft

↑ 934ft↓ 996ft

94 ft

Overall

209

Females

53

F40-49

8

Rattlesnake Bar 1→Overlook 1

35.8 - 44.9 mi

Top 96%

446 ft1240 ft

↑ 1348ft↓ 554ft

830 ft

Overall

187

Females

51

F40-49

13

Overlook 1→No Hands 1

44.9 - 49.2 mi

Top 87%

1276 ft587 ft

↑ 140ft↓ 829ft

689 ft

Overall

169

Females

47

F40-49

9

No Hands 1→ALT

49.2 - 59.4 mi

Top 97%

592 ft1516 ft

↑ 1610ft↓ 686ft

945 ft

Overall

188

Females

48

F40-49

10

ALT→Cool

59.4 - 69.0 mi

Top 95%

1522 ft1568 ft

↑ 1291ft↓ 1246ft

390 ft

Overall

184

Females

50

F40-49

10

Cool→No Hands 2

69.0 - 72.6 mi

Top 34%

1575 ft617 ft

↑ 79ft↓ 1037ft

971 ft

Overall

65

Females

26

F40-49

9

No Hands 2→Overlook 2

72.6 - 76.8 mi

Top 59%

617 ft1332 ft

↑ 851ft↓ 135ft

715 ft

Overall

115

Females

33

F40-49

9

Overlook 2→Rattlesnake Bar 2

76.8 - 86.0 mi

Top 80%

1355 ft515 ft

↑ 531ft↓ 1371ft

889 ft

Overall

155

Females

45

F40-49

10

Rattlesnake Bar 2→Granite Beach 2

86.0 - 95.8 mi

Top 81%

486 ft453 ft

↑ 984ft↓ 1017ft

118 ft

Overall

158

Females

45

F40-49

10

Granite Beach 2→Finish

95.8 - 100.0 mi

Top 82%

453 ft453 ft

↑ 380ft↓ 380ft

128 ft

Overall

159

Females

45

F40-49

10

Your segment insights are in your Race Performance Report.

Passing Analysis

No position changes recorded for this athlete.

Finisher Certificate

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November 7-8, 2026

Amy Chinn

Has completed the 100 MILE ENDURANCE RUN in a time of:

29:04:47

153

out of 194

Overall Place

39

out of 58

Gender (Female)

14

out of 22

Age Group (F40-49)

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Official Timing Data

Enhanced athlete results built from official timing data.

Race managed by

NorCalUltras

Race timed by

Capital Road Race Management