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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Stanley Walczak

Bib: 1502 •M •Age: 45

Chesapeake, VA

Shamrock Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Male)
#0 / 1153
Masters (Masters Men)
#0 / 398
Age Group (M45-49)
Official
#0 / 89
Calculated (M45-49)
#0 / 89
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
30:05
3.11 mi
Rank: #1068
Start → 5K
30:05 | 9:41/mi
10K
58:26
6.21 mi
Rank: #961 (+107)
5K → 10K
28:21 | 9:08/mi
15K
1:27:01
9.32 mi
Rank: #932 (+29)
10K → 15K
28:35 | 9:13/mi
20K
1:56:31
12.43 mi
Rank: #936 (-4)
15K → 20K
29:30 | 9:30/mi
Half
2:03:33
13.10 mi
Rank: #937 (-1)
20K → Half
7:02 | 10:29/mi
25K
2:31:31
15.53 mi
Rank: #998 (-61)
Half → 25K
27:58 | 11:29/mi
30K
3:03:39
18.64 mi
Rank: #1074 (-76)
25K → 30K
32:08 | 10:21/mi
35K
3:48:06
21.75 mi
Rank: #1154 (-80)
30K → 35K
44:27 | 14:19/mi
25.2M
4:28:46
25.20 mi
Rank: #1136 (+18)
35K → 25.2M
40:40 | 11:47/mi
Finish
4:40:17
26.22 mi
Rank: #1142 (-6)
25.2M → Finish
11:31 | 11:19/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:03:33
Pace9:26 /mi
2nd Half
Distance13.12 mi
Time2:36:44
Pace11:57 /mi
📊Positive Split: 26.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:14:4130:059:4130:05
9:41
-
10K
6.21 mi08:43:0258:269:2528:21
9:08
-0:33
15K
9.32 mi09:11:371:27:019:2128:35
9:13
+0:05
20K
12.43 mi09:41:071:56:319:2329:30
9:30
+0:17
Half
13.10 mi09:48:092:03:339:267:02
10:29
+0:59
25K
15.53 mi10:16:072:31:319:4627:58
11:29
+1:00
30K
18.64 mi10:48:153:03:399:5232:08
10:21
-1:08
35K
21.75 mi11:32:423:48:0610:3044:27
14:19
+3:58
25.2M
25.20 mi12:13:224:28:4610:4040:40
11:47
-2:32
Finish
26.22 mi12:24:534:40:1710:4211:31
11:19
-0:28

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

9:08 /mi

Average Pace

10:42 /mi

Slowest Pace

14:19 /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

1:56:31

42% of race

Time at Steady Pace

39:10

14% of race

Time at Slower Pace

2:04:36

44% of race

Average Pace: 10:41 /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 mi08:14:4130:059:4130:05
9:41
#1068
10K
6.21 mi08:43:0258:269:2528:21
9:08
#961
15K
9.32 mi09:11:371:27:019:2128:35
9:13
#932
20K
12.43 mi09:41:071:56:319:2329:30
9:30
#936
Half
13.10 mi09:48:092:03:339:267:02
10:29
#937
25K
15.53 mi10:16:072:31:319:4627:58
11:29
#998
30K
18.64 mi10:48:153:03:399:5232:08
10:21
#1074
35K
21.75 mi11:32:423:48:0610:3044:27
14:19
#1154
25.2M
25.20 mi12:13:224:28:4610:4040:40
11:47
#1136
Finish
26.22 mi12:24:534:40:1710:4211:31
11:19
#1142
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi106872754869(Top 45%)621(Top 54%)46(Top 52%)
10K6.21 mi3.10 mi961+107675+5252+2838(Top 43%)593(Top 51%)43(Top 48%)
15K9.32 mi3.11 mi932+29661+1452869(Top 45%)621(Top 54%)46(Top 52%)
20K12.43 mi3.11 mi936-4658+351+1949(Top 49%)664(Top 58%)52(Top 58%)
Half13.10 mi0.67 mi937-1659-1511021(Top 52%)701(Top 61%)55(Top 62%)
25K15.53 mi2.43 mi998-61687-2852-11371(Top 70%)877(Top 76%)71(Top 80%)
30K18.64 mi3.11 mi1074-76727-4054-21351(Top 69%)844(Top 73%)67(Top 75%)
35K21.75 mi3.11 mi1154-80765-3859-51386(Top 71%)848(Top 74%)67(Top 75%)
25.2M25.20 mi3.45 mi1136+18744+2158+11119(Top 57%)678(Top 59%)59(Top 66%)
Finish26.22 mi1.02 mi1142-6748-4581360(Top 70%)825(Top 72%)67(Top 75%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×1
+26ft-31ft

Overall

869

Males

621

M45-49

46

5K→10K

3.1 - 6.2 mi

Top 43%
×2
+38ft-17ft

Overall

838

Males

593

M45-49

43

10K→15K

6.2 - 9.3 mi

Top 45%
×2
+26ft-44ft

Overall

869

Males

621

M45-49

46

15K→20K

9.3 - 12.4 mi

Top 49%
×1
+35ft-22ft

Overall

949

Males

664

M45-49

52

20K→Half

12.4 - 13.1 mi

Top 52%
×1
+7ft-13ft

Overall

1021

Males

701

M45-49

55

Half→25K

13.1 - 15.5 mi

Top 70%
×2
+48ft-19ft

Overall

1371

Males

877

M45-49

71

25K→30K

15.5 - 18.6 mi

Top 69%
×2
+38ft-52ft

Overall

1351

Males

844

M45-49

67

30K→35K

18.6 - 21.8 mi

Top 71%
×2
+39ft-39ft

Overall

1386

Males

848

M45-49

67

35K→25.2M

21.8 - 25.2 mi

Top 57%
×3
+57ft-58ft

Overall

1119

Males

678

M45-49

59

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×1
+17ft-12ft

Overall

1360

Males

825

M45-49

67

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
212
Passed By
286
Net Change
-74
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1068
5K → 10K1103+107#1068#961
10K → 15K334+29#961#932
15K → 20K1115-4#932#936
20K → Half67-1#936#937
Half → 25K263-61#937#998
25K → 30K581-76#998#1074
30K → 35K1191-80#1074#1154
35K → 25.2M3113+18#1154#1136
25.2M → Finish39-6#1136#1142
TOTALS212286-74
📊

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.

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