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Official Timing Data

J & A Racing

J & A Racing

Big River Race Management

Big River Race Management
SHAMROCK MARATHON 2025

Chae Kim

Bib: 2134 •F •Age: 47

Fairfax, VA

Shamrock Marathon logo
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
34:19
3.11 mi
Rank: #1557
Start → 5K
34:19 | 11:03/mi
10K
1:09:29
6.21 mi
Rank: #1562 (-5)
5K → 10K
35:10 | 11:20/mi
15K
1:44:23
9.32 mi
Rank: #1563 (-1)
10K → 15K
34:54 | 11:14/mi
20K
2:19:59
12.43 mi
Rank: #1558 (+5)
15K → 20K
35:36 | 11:28/mi
Half
2:28:05
13.10 mi
Rank: #1545 (+13)
20K → Half
8:06 | 12:05/mi
25K
2:58:38
15.53 mi
Rank: #1577 (-32)
Half → 25K
30:33 | 12:33/mi
30K
3:29:43
18.64 mi
Rank: #1515 (+62)
25K → 30K
31:05 | 10:01/mi
35K
4:12:13
21.75 mi
Rank: #1474 (+41)
30K → 35K
42:30 | 13:41/mi
25.2M
5:06:16
25.20 mi
Rank: #1550 (-76)
35K → 25.2M
54:03 | 15:40/mi
Finish
5:18:07
26.22 mi
Rank: #1545 (+5)
25.2M → Finish
11:51 | 11:38/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.10 mi
Time2:28:05
Pace11:19 /mi
2nd Half
Distance13.12 mi
Time2:50:02
Pace12:58 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:17:1234:1911:0334:19
11:03
-
10K
6.21 mi08:52:221:09:2911:1135:10
11:20
+0:17
15K
9.32 mi09:27:161:44:2311:1234:54
11:14
-0:06
20K
12.43 mi10:02:522:19:5911:1635:36
11:28
+0:14
Half
13.10 mi10:10:582:28:0511:198:06
12:05
+0:37
25K
15.53 mi10:41:312:58:3811:3030:33
12:33
+0:28
30K
18.64 mi11:12:363:29:4311:1631:05
10:01
-2:32
35K
21.75 mi11:55:064:12:1311:3642:30
13:41
+3:40
25.2M
25.20 mi12:49:095:06:1612:1054:03
15:40
+1:59
Finish
26.22 mi13:01:005:18:0712:0911:51
11:38
-4:02

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

10:01 /mi

Average Pace

12:09 /mi

Slowest Pace

15:40 /mi

Loading chart...
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

31:05

10% of race

Time at Steady Pace

2:39:56

50% of race

Time at Slower Pace

2:07:06

40% 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 mi08:17:1234:1911:0334:19
11:03
#1557
10K
6.21 mi08:52:221:09:2911:1135:10
11:20
#1562
15K
9.32 mi09:27:161:44:2311:1234:54
11:14
#1563
20K
12.43 mi10:02:522:19:5911:1635:36
11:28
#1558
Half
13.10 mi10:10:582:28:0511:198:06
12:05
#1545
25K
15.53 mi10:41:312:58:3811:3030:33
12:33
#1577
30K
18.64 mi11:12:363:29:4311:1631:05
10:01
#1515
35K
21.75 mi11:55:064:12:1311:3642:30
13:41
#1474
25.2M
25.20 mi12:49:095:06:1612:1054:03
15:40
#1550
Finish
26.22 mi13:01:005:18:0712:0911:51
11:38
#1545
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 mi1557571441540(Top 79%)550(Top 70%)42(Top 53%)
10K6.21 mi3.10 mi1562-5564+7441582(Top 81%)574(Top 73%)47(Top 59%)
15K9.32 mi3.11 mi1563-1563+143+11540(Top 79%)550(Top 70%)42(Top 53%)
20K12.43 mi3.11 mi1558+5561+244-11568(Top 80%)570(Top 72%)48(Top 61%)
Half13.10 mi0.67 mi1545+13556+543+11507(Top 77%)543(Top 69%)44(Top 56%)
25K15.53 mi2.43 mi1577-32571-1548-51576(Top 81%)596(Top 75%)55(Top 70%)
30K18.64 mi3.11 mi1515+62550+2145+31254(Top 64%)454(Top 57%)39(Top 49%)
35K21.75 mi3.11 mi1474+41542+844+11271(Top 65%)483(Top 61%)42(Top 53%)
25.2M25.20 mi3.45 mi1550-76580-3850-61799(Top 92%)728(Top 92%)73(Top 92%)
Finish26.22 mi1.02 mi1545+5578+249+11449(Top 74%)573(Top 72%)46(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×1
+26ft-31ft

Overall

1540

Females

550

F45-49

42

5K→10K

3.1 - 6.2 mi

Top 81%
×2
+38ft-17ft

Overall

1582

Females

574

F45-49

47

10K→15K

6.2 - 9.3 mi

Top 79%
×2
+26ft-44ft

Overall

1540

Females

550

F45-49

42

15K→20K

9.3 - 12.4 mi

Top 80%
×1
+35ft-22ft

Overall

1568

Females

570

F45-49

48

20K→Half

12.4 - 13.1 mi

Top 77%
×1
+7ft-13ft

Overall

1507

Females

543

F45-49

44

Half→25K

13.1 - 15.5 mi

Top 81%
×2
+48ft-19ft

Overall

1576

Females

596

F45-49

55

25K→30K

15.5 - 18.6 mi

Top 64%
×2
+38ft-52ft

Overall

1254

Females

454

F45-49

39

30K→35K

18.6 - 21.8 mi

Top 65%
×2
+39ft-39ft

Overall

1271

Females

483

F45-49

42

35K→25.2M

21.8 - 25.2 mi

Top 92%
×3
+57ft-58ft

Overall

1799

Females

728

F45-49

73

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×1
+17ft-12ft

Overall

1449

Females

573

F45-49

46

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
235
Passed By
223
Net Change
+12
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1557
5K → 10K3439-5#1557#1562
10K → 15K2728-1#1562#1563
15K → 20K1712+5#1563#1558
20K → Half163+13#1558#1545
Half → 25K1749-32#1545#1577
25K → 30K642+62#1577#1515
30K → 35K498+41#1515#1474
35K → 25.2M177-76#1474#1550
25.2M → Finish105+5#1550#1545
TOTALS235223+12
📊

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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