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SHAMROCKN HALF 2026

Mason O'Brien

Auburn, CA

Bib: 6820 M 15

0:00
0:00
/ mi
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Overall
#0 / 3875
Top 8%
Gender (Male)
#0 / 1983
Top 12%
Division (M15-18)
#0 / 52
Top 38%
Race Day Weather
55°/45°F
clear sky

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
35 ft elev
Mile 2.04
7:21/mi
14:59
↑ 46↓ 48
34 ft elev
Mile 5.13
7:02/mi
36:40
↑ 14↓ 340.1%
13 ft elev
HALF· 6.55 mi
6:58/mi
46:33
↑ 14↓ 13
14 ft elev
Mile 11
8:15/mi
1:23:13
↑ 68↓ 47
34 ft elev
FINISH· 13.11 mi
8:15/mi
1:40:35
↑ 24↓ 27
35 ft elev
Course Elevation
10–42 ft
≈
×3story building
•▲ 178 ft climb · ▼ 182 ft descent

The Course

Half Splits

1st Half· via HALF
46:337:07 /mi⚡ faster
2nd Half
54:038:15 /mi+16.1%
Positive split — 16.1% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
Mile 2.04
14:597:212.04 mi14:59
7:21
-
Mile 5.13
36:407:093.09 mi21:41
7:02
-0:19
HALF(6.55 mi)
46:337:071.42 mi9:53
6:58
-0:04
Mile 11
1:23:137:344.45 mi36:39
8:15
+1:17
FINISH(13.11 mi)
1:40:357:412.11 mi17:23
8:15
0:00
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:58 /mi

Average Pace

7:40 /mi

Slowest Pace

8:15 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

46:33

46% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

54:02

54% of race

Average Pace: 7:40 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM15-18Seg. OverallSeg. MalesSeg. M15-18
Mile 2.042.04 mi2.04 mi2321891523218915
Mile 5.135.13 mi3.09 mi179+53145+4410+51591329
HALF6.55 mi1.42 mi167+12137+88+2117998
Mile 1111.00 mi4.45 mi255-88210-7315-751541822
FINISH13.11 mi2.11 mi296-41245-3520-562549527

Segment Performance Analysis

Start → Mile 2.04

0.0 - 2.0 mi

Top 6%
×2story building
+46ft-48ft

Overall

232

Males

189

M15-18

15

Mile 2.04→Mile 5.13

2.0 - 5.1 mi

Top 4%
×2story building
+14ft-34ft

Overall

159

Males

132

M15-18

9

Mile 5.13→HALF

5.1 - 6.5 mi

Top 3%
×2stacked humans
+14ft-13ft

Overall

117

Males

99

M15-18

8

HALF→Mile 11

6.5 - 11.0 mi

Top 13%
×2story building
+68ft-47ft

Overall

515

Males

418

M15-18

22

Mile 11→FINISH

11.0 - 13.1 mi

Top 16%
×2story building
+24ft-27ft

Overall

625

Males

495

M15-18

27

Passing Analysis

Category:
Athletes Passed
67
Passed By
131
Net Change
-64
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → Mile 2.04----#232
Mile 2.04 → Mile 5.13541+53#232#179
Mile 5.13 → HALF120+12#179#167
HALF → Mile 11189-88#167#255
Mile 11 → FINISH041-41#255#296
TOTALS67131-64

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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