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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Brian Geschke

Bib: 2407 •M •Age: 35

Manassas, VA

Shamrock Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Age Group (M35-39)
Official
#0 / 178
Calculated (M35-39)
#0 / 178
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
36:18
3.11 mi
Rank: #1728
Start → 5K
36:18 | 11:42/mi
10K
1:14:16
6.21 mi
Rank: #1746 (-18)
5K → 10K
37:58 | 12:14/mi
15K
1:50:33
9.32 mi
Rank: #1716 (+30)
10K → 15K
36:17 | 11:41/mi
20K
2:27:39
12.43 mi
Rank: #1699 (+17)
15K → 20K
37:06 | 11:57/mi
Half
2:36:26
13.10 mi
Rank: #1694 (+5)
20K → Half
8:47 | 13:06/mi
25K
3:04:48
15.53 mi
Rank: #1666 (+28)
Half → 25K
28:22 | 11:39/mi
30K
3:36:50
18.64 mi
Rank: #1598 (+68)
25K → 30K
32:02 | 10:19/mi
35K
4:22:00
21.75 mi
Rank: #1573 (+25)
30K → 35K
45:10 | 14:33/mi
25.2M
5:06:37
25.20 mi
Rank: #1557 (+16)
35K → 25.2M
44:37 | 12:56/mi
Finish
5:17:56
26.22 mi
Rank: #1540 (+17)
25.2M → Finish
11:19 | 11:07/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:36:26
Pace11:57 /mi
2nd Half
Distance13.12 mi
Time2:41:31
Pace12:19 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:22:3136:1811:4236:18
11:42
-
10K
6.21 mi09:00:291:14:1611:5837:58
12:14
+0:32
15K
9.32 mi09:36:461:50:3311:5236:17
11:41
-0:33
20K
12.43 mi10:13:522:27:3911:5337:06
11:57
+0:16
Half
13.10 mi10:22:392:36:2611:578:47
13:06
+1:09
25K
15.53 mi10:51:013:04:4811:5428:22
11:39
-1:27
30K
18.64 mi11:23:033:36:5011:3832:02
10:19
-1:20
35K
21.75 mi12:08:134:22:0012:0345:10
14:33
+4:14
25.2M
25.20 mi12:52:505:06:3712:1144:37
12:56
-1:37
Finish
26.22 mi13:04:095:17:5612:0911:19
11:07
-1:49

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

10:19 /mi

Average Pace

12:08 /mi

Slowest Pace

14:33 /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

43:21

14% of race

Time at Steady Pace

2:56:01

55% of race

Time at Slower Pace

1:38:34

31% of race

Average Pace: 12:08 /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 mi08:22:3136:1811:4236:18
11:42
#1728
10K
6.21 mi09:00:291:14:1611:5837:58
12:14
#1746
15K
9.32 mi09:36:461:50:3311:5236:17
11:41
#1716
20K
12.43 mi10:13:522:27:3911:5337:06
11:57
#1699
Half
13.10 mi10:22:392:36:2611:578:47
13:06
#1694
25K
15.53 mi10:51:013:04:4811:5428:22
11:39
#1666
30K
18.64 mi11:23:033:36:5011:3832:02
10:19
#1598
35K
21.75 mi12:08:134:22:0012:0345:10
14:33
#1573
25.2M
25.20 mi12:52:505:06:3712:1144:37
12:56
#1557
Finish
26.22 mi13:04:095:17:5612:0911:19
11:07
#1540
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
5K3.11 mi3.11 mi172810771721650(Top 85%)1039(Top 90%)165(Top 93%)
10K6.21 mi3.10 mi1746-181084-7173-11760(Top 90%)1086(Top 94%)172(Top 97%)
15K9.32 mi3.11 mi1716+301072+12170+31650(Top 85%)1039(Top 90%)165(Top 93%)
20K12.43 mi3.11 mi1699+171057+15167+31658(Top 85%)1027(Top 89%)164(Top 92%)
Half13.10 mi0.67 mi1694+51053+4166+11694(Top 87%)1045(Top 91%)166(Top 93%)
25K15.53 mi2.43 mi1666+281039+141661409(Top 72%)895(Top 78%)141(Top 79%)
30K18.64 mi3.11 mi1598+681003+36159+71340(Top 69%)840(Top 73%)135(Top 76%)
35K21.75 mi3.11 mi1573+25986+17156+31430(Top 73%)872(Top 76%)134(Top 75%)
25.2M25.20 mi3.45 mi1557+16969+17150+61394(Top 72%)844(Top 73%)127(Top 71%)
Finish26.22 mi1.02 mi1540+17961+8151-11326(Top 68%)802(Top 70%)126(Top 71%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×1
+26ft-31ft

Overall

1650

Males

1039

M35-39

165

5K→10K

3.1 - 6.2 mi

Top 90%
×2
+38ft-17ft

Overall

1760

Males

1086

M35-39

172

10K→15K

6.2 - 9.3 mi

Top 85%
×2
+26ft-44ft

Overall

1650

Males

1039

M35-39

165

15K→20K

9.3 - 12.4 mi

Top 85%
×1
+35ft-22ft

Overall

1658

Males

1027

M35-39

164

20K→Half

12.4 - 13.1 mi

Top 87%
×1
+7ft-13ft

Overall

1694

Males

1045

M35-39

166

Half→25K

13.1 - 15.5 mi

Top 72%
×2
+48ft-19ft

Overall

1409

Males

895

M35-39

141

25K→30K

15.5 - 18.6 mi

Top 69%
×2
+38ft-52ft

Overall

1340

Males

840

M35-39

135

30K→35K

18.6 - 21.8 mi

Top 73%
×2
+39ft-39ft

Overall

1430

Males

872

M35-39

134

35K→25.2M

21.8 - 25.2 mi

Top 72%
×3
+57ft-58ft

Overall

1394

Males

844

M35-39

127

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×1
+17ft-12ft

Overall

1326

Males

802

M35-39

126

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
269
Passed By
81
Net Change
+188
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1728
5K → 10K1735-18#1728#1746
10K → 15K355+30#1746#1716
15K → 20K258+17#1716#1699
20K → Half116+5#1699#1694
Half → 25K357+28#1694#1666
25K → 30K680+68#1666#1598
30K → 35K3510+25#1598#1573
35K → 25.2M259+16#1573#1557
25.2M → Finish181+17#1557#1540
TOTALS26981+188
📊

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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