Shamrock Marathon logo
SHAMROCK MARATHON 2026

Lucas W. Johnson

Bib: 1563•M•Age: 29

Laurel, MD

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 2429
Top 40%
Gender (Male)
#0 / 1480
Top 47%
Division (M25-29)
#0 / 297
Race Day Weather
55°/45°F
few clouds

⏱️ Race Timeline

Course Elevation
-8–55 ft
≈
×5story building
•▲ 331 ft climb · ▼ 310 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:06/mi
25:09
↑ 26↓ 31
10K· 6.21 mi
8:01/mi
50:02
↑ 38↓ 170.1%
15K· 9.32 mi
8:09/mi
1:15:20
↑ 26↓ 440.1%
20K· 12.43 mi
8:40/mi
1:42:17
↑ 35↓ 22
Half· 13.10 mi
8:48/mi
1:48:11
↓ 130.2%
30K· 18.64 mi
10:20/mi
2:45:28
↑ 86↓ 72
35K· 21.75 mi
12:30/mi
3:24:18
↑ 39↓ 39
25.2M
12:16/mi
4:06:39
↑ 57↓ 58
Finish· 26.22 mi
10:36/mi
4:17:27
↑ 17↓ 12

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.10 mi
Time1:48:11
Pace8:16 /mi
2nd Half
Distance13.12 mi
Time2:29:16
Pace11:23 /mi
📊Positive Split: 38.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:03:1325:098:0625:09
8:06
-
10K
6.21 mi08:28:0650:028:0324:53
8:01
-0:05
15K
9.32 mi08:53:241:15:208:0525:18
8:09
+0:08
20K
12.43 mi09:20:211:42:178:1426:57
8:40
+0:31
Half
13.10 mi09:26:151:48:118:165:54
8:48
+0:08
30K
18.64 mi10:23:322:45:288:5357:17
10:20
+1:32
35K
21.75 mi11:02:223:24:189:2438:50
12:30
+2:10
25.2M
25.20 mi11:44:434:06:399:4742:21
12:16
-0:14
Finish
26.22 mi11:55:314:17:279:5010:48
10:36
-1:40

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

8:01 /mi

Average Pace

9:50 /mi

Slowest Pace

12:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:48:11

42% of race

Time at Slower Pace

2:29:16

58% of race

Average Pace: 9:49 /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 mi08:03:1325:098:0625:09
8:06
#535
10K
6.21 mi08:28:0650:028:0324:53
8:01
#526
15K
9.32 mi08:53:241:15:208:0525:18
8:09
#548
20K
12.43 mi09:20:211:42:178:1426:57
8:40
#579
Half
13.10 mi09:26:151:48:118:165:54
8:48
#574
30K
18.64 mi10:23:322:45:288:5357:17
10:20
#793
35K
21.75 mi11:02:223:24:189:2438:50
12:30
#921
25.2M
25.20 mi11:44:434:06:399:4742:21
12:16
#967
Finish
26.22 mi11:55:314:17:279:5010:48
10:36
#965
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
5K3.11 mi3.11 mi53543995575(Top 24%)474(Top 32%)104(Top 35%)
10K6.21 mi3.10 mi526+9432+793+2529(Top 22%)439(Top 30%)98(Top 33%)
15K9.32 mi3.11 mi548-22451-1999-6575(Top 24%)474(Top 32%)104(Top 35%)
20K12.43 mi3.11 mi579-31472-21103-4750(Top 31%)595(Top 40%)127(Top 43%)
Half13.10 mi0.67 mi574+5471+1104-1767(Top 32%)606(Top 41%)131(Top 44%)
30K18.64 mi5.54 mi793-219623-152137-331332(Top 55%)919(Top 62%)191(Top 65%)
35K21.75 mi3.11 mi921-128682-59150-131285(Top 53%)841(Top 57%)182(Top 62%)
25.2M25.20 mi3.45 mi967-46698-16153-31272(Top 52%)792(Top 54%)162(Top 55%)
Finish26.22 mi1.02 mi965+2693+5152+11179(Top 49%)759(Top 51%)166(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×1story
+26ft-31ft

Overall

575

Males

474

M25-29

111

5K→10K

3.1 - 6.2 mi

Top 22%
×2story building
+38ft-17ft

Overall

529

Males

439

M25-29

105

10K→15K

6.2 - 9.3 mi

Top 24%
×2story building
+26ft-44ft

Overall

575

Males

474

M25-29

111

15K→20K

9.3 - 12.4 mi

Top 31%
×1story
+35ft-22ft

Overall

750

Males

595

M25-29

134

20K→Half

12.4 - 13.1 mi

Top 32%
×1human
+7ft-13ft

Overall

767

Males

606

M25-29

137

Half→30K

13.1 - 18.6 mi

Top 55%
×2story building
+86ft-72ft

Overall

1332

Males

919

M25-29

198

30K→35K

18.6 - 21.8 mi

Top 53%
×2stacked humans
+39ft-39ft

Overall

1285

Males

841

M25-29

188

35K→25.2M

21.8 - 25.2 mi

Top 52%
×3story building
+57ft-58ft

Overall

1272

Males

792

M25-29

166

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×1human
+17ft-12ft

Overall

1179

Males

759

M25-29

168

Passing Analysis

Category:
Athletes Passed
109*
Passed By
539
Net Change
-430
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#535
5K → 10K189+9#535#526
10K → 15K628-22#526#548
15K → 20K8*39-31#548#579
20K → Half12*7+5#579#574
Half → 30K13*232-219#574#793
30K → 35K18*146-128#793#921
35K → 25.2M24*70-46#921#967
25.2M → Finish10*8+2#967#965
TOTALS109*539-430

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...
🏆 Finisher Certificate
Download or share your official race finisher certificate
Loading certificate...

Your certificate is generated on-demand and can be shared on social media or saved for your records

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

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

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management