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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Olga Demestihas

Bib: 2403 •F •Age: 49

Annandale, VA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 1949
Gender (Female)
#0 / 791
Masters (Masters Women)
#0 / 277
Age Group (F45-49)
Official
#0 / 79
Calculated (F45-49)
#0 / 79
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
45:16
3.11 mi
Rank: #1935
Start → 5K
45:16 | 14:35/mi
10K
1:32:23
6.21 mi
Rank: #1933 (+2)
5K → 10K
47:07 | 15:10/mi
15K
2:20:04
9.32 mi
Rank: #1935 (-2)
10K → 15K
47:41 | 15:21/mi
20K
3:08:01
12.43 mi
Rank: #1935
15K → 20K
47:57 | 15:27/mi
Half
3:18:52
13.10 mi
Rank: #1927 (+8)
20K → Half
10:51 | 16:11/mi
25K
4:02:48
15.53 mi
Rank: #1939 (-12)
Half → 25K
43:56 | 18:03/mi
30K
4:46:50
18.64 mi
Rank: #1937 (+2)
25K → 30K
44:02 | 14:11/mi
35K
5:45:00
21.75 mi
Rank: #1940 (-3)
30K → 35K
58:10 | 18:44/mi
25.2M
6:42:56
25.20 mi
Rank: #1935 (+5)
35K → 25.2M
57:56 | 16:48/mi
Finish
6:58:46
26.22 mi
Rank: #1934 (+1)
25.2M → Finish
15:50 | 15:33/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time3:18:52
Pace15:11 /mi
2nd Half
Distance13.12 mi
Time3:39:54
Pace16:46 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:29:4045:1614:3545:16
14:35
-
10K
6.21 mi09:16:471:32:2314:5347:07
15:10
+0:35
15K
9.32 mi10:04:282:20:0415:0247:41
15:21
+0:11
20K
12.43 mi10:52:253:08:0115:0847:57
15:27
+0:06
Half
13.10 mi11:03:163:18:5215:1110:51
16:11
+0:44
25K
15.53 mi11:47:124:02:4815:3843:56
18:03
+1:52
30K
18.64 mi12:31:144:46:5015:2444:02
14:11
-3:52
35K
21.75 mi13:29:245:45:0015:5258:10
18:44
+4:33
25.2M
25.20 mi14:27:206:42:5616:0057:56
16:48
-1:56
Finish
26.22 mi14:43:106:58:4616:0015:50
15:33
-1:15

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

14:11 /mi

Average Pace

15:59 /mi

Slowest Pace

18:44 /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

1:29:18

21% of race

Time at Steady Pace

2:49:26

40% of race

Time at Slower Pace

2:40:02

38% of race

Average Pace: 15:58 /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 mi08:29:4045:1614:3545:16
14:35
#1935
10K
6.21 mi09:16:471:32:2314:5347:07
15:10
#1933
15K
9.32 mi10:04:282:20:0415:0247:41
15:21
#1935
20K
12.43 mi10:52:253:08:0115:0847:57
15:27
#1935
Half
13.10 mi11:03:163:18:5215:1110:51
16:11
#1927
25K
15.53 mi11:47:124:02:4815:3843:56
18:03
#1939
30K
18.64 mi12:31:144:46:5015:2444:02
14:11
#1937
35K
21.75 mi13:29:245:45:0015:5258:10
18:44
#1940
25.2M
25.20 mi14:27:206:42:5616:0057:56
16:48
#1935
Finish
26.22 mi14:43:106:58:4616:0015:50
15:33
#1934
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi1935783791936(Top 99%)786(Top 99%)79(Top 100%)
10K6.21 mi3.10 mi1933+2784-178+11931(Top 99%)783(Top 99%)78(Top 99%)
15K9.32 mi3.11 mi1935-2784781936(Top 99%)786(Top 99%)79(Top 100%)
20K12.43 mi3.11 mi1935785-1781925(Top 99%)779(Top 98%)77(Top 97%)
Half13.10 mi0.67 mi1927+8783+2781901(Top 98%)769(Top 97%)76(Top 96%)
25K15.53 mi2.43 mi1939-12787-4781930(Top 99%)786(Top 99%)79(Top 100%)
30K18.64 mi3.11 mi1937+2786+1781879(Top 96%)757(Top 96%)76(Top 96%)
35K21.75 mi3.11 mi1940-3787-1781873(Top 96%)755(Top 95%)75(Top 95%)
25.2M25.20 mi3.45 mi1935+5784+3781881(Top 97%)762(Top 96%)78(Top 99%)
Finish26.22 mi1.02 mi1934+1784781888(Top 97%)767(Top 97%)78(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×1
+26ft-31ft

Overall

1936

Females

786

F45-49

79

5K→10K

3.1 - 6.2 mi

Top 99%
×2
+38ft-17ft

Overall

1931

Females

783

F45-49

78

10K→15K

6.2 - 9.3 mi

Top 99%
×2
+26ft-44ft

Overall

1936

Females

786

F45-49

79

15K→20K

9.3 - 12.4 mi

Top 99%
×1
+35ft-22ft

Overall

1925

Females

779

F45-49

77

20K→Half

12.4 - 13.1 mi

Top 98%
×1
+7ft-13ft

Overall

1901

Females

769

F45-49

76

Half→25K

13.1 - 15.5 mi

Top 99%
×2
+48ft-19ft

Overall

1930

Females

786

F45-49

79

25K→30K

15.5 - 18.6 mi

Top 96%
×2
+38ft-52ft

Overall

1879

Females

757

F45-49

76

30K→35K

18.6 - 21.8 mi

Top 96%
×2
+39ft-39ft

Overall

1873

Females

755

F45-49

75

35K→25.2M

21.8 - 25.2 mi

Top 97%
×3
+57ft-58ft

Overall

1881

Females

762

F45-49

78

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×1
+17ft-12ft

Overall

1888

Females

767

F45-49

78

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
32
Passed By
31
Net Change
+1
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1935
5K → 10K86+2#1935#1933
10K → 15K24-2#1933#1935
15K → 20K330#1935#1935
20K → Half80+8#1935#1927
Half → 25K214-12#1927#1939
25K → 30K31+2#1939#1937
30K → 35K03-3#1937#1940
35K → 25.2M50+5#1940#1935
25.2M → Finish10+1#1935#1934
TOTALS3231+1
📊

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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