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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Luke Frels

Bib: 928 •M •Age: 50

Springfield, VA

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 1949
Top 27%
Gender (Male)
#0 / 1153
Top 32%
Masters (Masters Men)
#0 / 398
Top 31%
Age Group (M50-54)
#0 / 76
Top 24%
Race Day Weather
71°/61°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
26:42
3.11 mi
Rank: #563
Start → 5K
26:42 | 8:36/mi
10K
53:29
6.21 mi
Rank: #561 (+2)
5K → 10K
26:47 | 8:38/mi
15K
1:20:10
9.32 mi
Rank: #551 (+10)
10K → 15K
26:41 | 8:36/mi
20K
1:46:59
12.43 mi
Rank: #564 (-13)
15K → 20K
26:49 | 8:38/mi
Half
1:53:11
13.10 mi
Rank: #556 (+8)
20K → Half
6:12 | 9:15/mi
25K
2:14:30
15.53 mi
Rank: #536 (+20)
Half → 25K
21:19 | 8:46/mi
30K
2:38:02
18.64 mi
Rank: #503 (+33)
25K → 30K
23:32 | 7:35/mi
35K
3:09:08
21.75 mi
Rank: #478 (+25)
30K → 35K
31:06 | 10:01/mi
25.2M
3:44:04
25.20 mi
Rank: #508 (-30)
35K → 25.2M
34:56 | 10:08/mi
Finish
3:53:39
26.22 mi
Rank: #518 (-10)
25.2M → Finish
9:35 | 9:25/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time1:53:11
Pace8:39 /mi
2nd Half
Distance13.12 mi
Time2:00:29
Pace9:11 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:02:5126:428:3626:42
8:36
-
10K
6.21 mi08:29:3853:298:3726:47
8:38
+0:02
15K
9.32 mi08:56:191:20:108:3726:41
8:36
-0:02
20K
12.43 mi09:23:081:46:598:3726:49
8:38
+0:02
Half
13.10 mi09:29:201:53:118:396:12
9:15
+0:37
25K
15.53 mi09:50:392:14:308:4021:19
8:46
-0:29
30K
18.64 mi10:14:112:38:028:2923:32
7:35
-1:11
35K
21.75 mi10:45:173:09:088:4231:06
10:01
+2:26
25.2M
25.20 mi11:20:133:44:048:5434:56
10:08
+0:07
Finish
26.22 mi11:29:483:53:398:569:35
9:25
-0:43

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:35 /mi

Average Pace

8:55 /mi

Slowest Pace

10:08 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

23:32

10% of race

Time at Steady Pace

2:08:18

55% of race

Time at Slower Pace

1:21:49

35% of race

Average Pace: 8:55 /mi

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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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:02:5126:428:3626:42
8:36
#563
10K
6.21 mi08:29:3853:298:3726:47
8:38
#561
15K
9.32 mi08:56:191:20:108:3726:41
8:36
#551
20K
12.43 mi09:23:081:46:598:3726:49
8:38
#564
Half
13.10 mi09:29:201:53:118:396:12
9:15
#556
25K
15.53 mi09:50:392:14:308:4021:19
8:46
#536
30K
18.64 mi10:14:112:38:028:2923:32
7:35
#503
35K
21.75 mi10:45:173:09:088:4231:06
10:01
#478
25.2M
25.20 mi11:20:133:44:048:5434:56
10:08
#508
Finish
26.22 mi11:29:483:53:398:569:35
9:25
#518
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi56342020547(Top 28%)407(Top 35%)18(Top 24%)
10K6.21 mi3.10 mi561+2418+220565(Top 29%)423(Top 37%)19(Top 25%)
15K9.32 mi3.11 mi551+10411+719+1547(Top 28%)407(Top 35%)18(Top 24%)
20K12.43 mi3.11 mi564-13419-819574(Top 29%)425(Top 37%)19(Top 25%)
Half13.10 mi0.67 mi556+8415+419556(Top 29%)418(Top 36%)17(Top 22%)
25K15.53 mi2.43 mi536+20402+1318+1479(Top 25%)362(Top 31%)18(Top 24%)
30K18.64 mi3.11 mi503+33378+2417+1403(Top 21%)300(Top 26%)12(Top 16%)
35K21.75 mi3.11 mi478+25355+2317436(Top 22%)306(Top 27%)14(Top 18%)
25.2M25.20 mi3.45 mi508-30366-1118-1664(Top 34%)431(Top 37%)23(Top 30%)
Finish26.22 mi1.02 mi518-10370-418729(Top 37%)463(Top 40%)28(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×1
+26ft-31ft

Overall

547

Males

407

M50-54

18

5K→10K

3.1 - 6.2 mi

Top 29%
×2
+38ft-17ft

Overall

565

Males

423

M50-54

19

10K→15K

6.2 - 9.3 mi

Top 28%
×2
+26ft-44ft

Overall

547

Males

407

M50-54

18

15K→20K

9.3 - 12.4 mi

Top 29%
×1
+35ft-22ft

Overall

574

Males

425

M50-54

19

20K→Half

12.4 - 13.1 mi

Top 29%
×1
+7ft-13ft

Overall

556

Males

418

M50-54

17

Half→25K

13.1 - 15.5 mi

Top 25%
×2
+48ft-19ft

Overall

479

Males

362

M50-54

18

25K→30K

15.5 - 18.6 mi

Top 21%
×2
+38ft-52ft

Overall

403

Males

300

M50-54

12

30K→35K

18.6 - 21.8 mi

Top 22%
×2
+39ft-39ft

Overall

436

Males

306

M50-54

14

35K→25.2M

21.8 - 25.2 mi

Top 34%
×3
+57ft-58ft

Overall

664

Males

431

M50-54

23

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×1
+17ft-12ft

Overall

729

Males

463

M50-54

28

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
147
Passed By
102
Net Change
+45
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#563
5K → 10K1917+2#563#561
10K → 15K177+10#561#551
15K → 20K417-13#551#564
20K → Half102+8#564#556
Half → 25K233+20#556#536
25K → 30K352+33#536#503
30K → 35K294+25#503#478
35K → 25.2M939-30#478#508
25.2M → Finish111-10#508#518
TOTALS147102+45
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

BQ

Boston Qualifying analysis available

Finisher Certificate

Download and share your official race completion certificate

🏆 Finisher Certificate
Download or share your official race finisher certificate
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Your certificate is generated on-demand and can be shared on social media or saved for your records

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

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

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

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
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