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SHAMROCK MARATHON 2025

Joon Ki Lee

Clarksburg, MD

Bib: 1266 M 70

0:00
0:00
/ mi
MastersBQ
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Overall
#0 / 1949
Top 34%
Gender (Male)
#0 / 1153
Top 41%
Masters (Masters Men)
#0 / 398
Top 38%
Division (M70-74)
#0 / 4
Top 25%
Race Day Weather
71°/61°F
overcast clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
7 ft elev
5K· 3.11 mi
8:59/mi
27:52
↑ 26↓ 31
1 ft elev
10K· 6.21 mi
9:08/mi
56:14
↑ 38↓ 170.1%
22 ft elev
15K· 9.32 mi
9:02/mi
1:24:15
↑ 26↓ 440.1%
5 ft elev
20K· 12.43 mi
8:52/mi
1:51:46
↑ 35↓ 22
17 ft elev
Half· 13.10 mi
9:19/mi
1:58:01
↓ 130.2%
11 ft elev
25K· 15.53 mi
9:23/mi
2:20:52
↑ 48↓ 190.2%
38 ft elev
30K· 18.64 mi
8:22/mi
2:46:50
↑ 38↓ 52
25 ft elev
35K· 21.75 mi
10:59/mi
3:20:56
↑ 39↓ 39
25 ft elev
25.2M
9:57/mi
3:55:15
↑ 57↓ 58
24 ft elev
Finish· 26.22 mi
9:21/mi
4:04:46
↑ 17↓ 12
28 ft elev
Course Elevation
-8–55 ft
≈
×5story building
•▲ 331 ft climb · ▼ 310 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.10 mi
Time1:58:01
Pace9:01 /mi
2nd Half
Distance13.12 mi
Time2:06:46
Pace9:40 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:06:0327:528:5927:52
8:59
-
10K
6.21 mi08:34:2556:149:0328:22
9:08
+0:09
15K
9.32 mi09:02:261:24:159:0328:01
9:02
-0:06
20K
12.43 mi09:29:571:51:469:0027:31
8:52
-0:10
Half
13.10 mi09:36:121:58:019:016:15
9:19
+0:27
25K
15.53 mi09:59:032:20:529:0522:51
9:23
+0:04
30K
18.64 mi10:25:012:46:508:5725:58
8:22
-1:01
35K
21.75 mi10:59:073:20:569:1534:06
10:59
+2:37
25.2M
25.20 mi11:33:263:55:159:2134:19
9:57
-1:02
Finish
26.22 mi11:42:574:04:469:219:31
9:21
-0:36

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:22 /mi

Average Pace

9:21 /mi

Slowest Pace

10:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

53:29

22% of race

Time at Steady Pace

2:02:52

50% of race

Time at Slower Pace

1:08:25

28% of race

Average Pace: 9:20 /mi

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

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:06:0327:528:5927:52
8:59
#758
10K
6.21 mi08:34:2556:149:0328:22
9:08
#796
15K
9.32 mi09:02:261:24:159:0328:01
9:02
#785
20K
12.43 mi09:29:571:51:469:0027:31
8:52
#764
Half
13.10 mi09:36:121:58:019:016:15
9:19
#747
25K
15.53 mi09:59:032:20:529:0522:51
9:23
#747
30K
18.64 mi10:25:012:46:508:5725:58
8:22
#743
35K
21.75 mi10:59:073:20:569:1534:06
10:59
#701
25.2M
25.20 mi11:33:263:55:159:2134:19
9:57
#667
Finish
26.22 mi11:42:574:04:469:219:31
9:21
#665
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi7585432779(Top 40%)558(Top 48%)2(Top 50%)
10K6.21 mi3.10 mi796-38569-262845(Top 43%)598(Top 52%)2(Top 50%)
15K9.32 mi3.11 mi785+11562+72779(Top 40%)558(Top 48%)2(Top 50%)
20K12.43 mi3.11 mi764+21547+152705(Top 36%)517(Top 45%)1(Top 25%)
Half13.10 mi0.67 mi747+17539+81+1604(Top 31%)448(Top 39%)1(Top 25%)
25K15.53 mi2.43 mi747536+31731(Top 38%)526(Top 46%)2(Top 50%)
30K18.64 mi3.11 mi743+4535+12-1717(Top 37%)505(Top 44%)2(Top 50%)
35K21.75 mi3.11 mi701+42500+352663(Top 34%)444(Top 39%)2(Top 50%)
25.2M25.20 mi3.45 mi667+34470+301+1611(Top 31%)399(Top 35%)1(Top 25%)
Finish26.22 mi1.02 mi665+2468+21705(Top 36%)449(Top 39%)1(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×1story
+26ft-31ft

Overall

779

Males

558

M70-74

2

5K→10K

3.1 - 6.2 mi

Top 43%
×2story building
+38ft-17ft

Overall

845

Males

598

M70-74

2

10K→15K

6.2 - 9.3 mi

Top 40%
×2story building
+26ft-44ft

Overall

779

Males

558

M70-74

2

15K→20K

9.3 - 12.4 mi

Top 36%
×1story
+35ft-22ft

Overall

705

Males

517

M70-74

1

20K→Half

12.4 - 13.1 mi

Top 31%
×1human
+7ft-13ft

Overall

604

Males

448

M70-74

1

Half→25K

13.1 - 15.5 mi

Top 38%
×2story building
+48ft-19ft

Overall

731

Males

526

M70-74

2

25K→30K

15.5 - 18.6 mi

Top 37%
×2story building
+38ft-52ft

Overall

717

Males

505

M70-74

2

30K→35K

18.6 - 21.8 mi

Top 34%
×2stacked humans
+39ft-39ft

Overall

663

Males

444

M70-74

2

35K→25.2M

21.8 - 25.2 mi

Top 31%
×3story building
+57ft-58ft

Overall

611

Males

399

M70-74

1

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×1human
+17ft-12ft

Overall

705

Males

449

M70-74

1

Passing Analysis

Category:
Athletes Passed
208
Passed By
115
Net Change
+93
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#758
5K → 10K846-38#758#796
10K → 15K2110+11#796#785
15K → 20K254+21#785#764
20K → Half181+17#764#747
Half → 25K15150#747#747
25K → 30K1713+4#747#743
30K → 35K5917+42#743#701
35K → 25.2M428+34#701#667
25.2M → Finish31+2#667#665
TOTALS208115+93
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management