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SHAMROCK MARATHON 2026

Carlos Castillo

Bib: 2943•M•Age: 40

Columbia, MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 2429
Gender (Male)
#0 / 1480
Masters (Masters Men)
#0 / 477
Division (M40-44)
#0 / 179
Race Day Weather
55°/45°F
few clouds

⏱️ Race Timeline

Course Elevation
-8–55 ft
≈
×5story building
•▲ 331 ft climb · ▼ 310 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
11:30/mi
35:43
↑ 26↓ 31
10K· 6.21 mi
11:19/mi
1:10:54
↑ 38↓ 170.1%
15K· 9.32 mi
11:47/mi
1:47:32
↑ 26↓ 440.1%
20K· 12.43 mi
12:15/mi
2:25:36
↑ 35↓ 22
Half· 13.10 mi
11:00/mi
2:32:59
↓ 130.2%
30K· 18.64 mi
14:18/mi
3:52:15
↑ 86↓ 72
35K· 21.75 mi
18:52/mi
4:50:52
↑ 39↓ 39
25.2M
15:28/mi
5:44:17
↑ 57↓ 58
Finish· 26.22 mi
15:28/mi
6:00:03
↑ 17↓ 12

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.10 mi
Time2:32:59
Pace11:41 /mi
2nd Half
Distance13.12 mi
Time3:27:04
Pace15:47 /mi
📊Positive Split: 35.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:22:4735:4311:3035:43
11:30
-
10K
6.21 mi08:57:581:10:5411:2535:11
11:19
-0:11
15K
9.32 mi09:34:361:47:3211:3236:38
11:47
+0:28
20K
12.43 mi10:12:402:25:3611:4338:04
12:15
+0:28
Half
13.10 mi10:20:032:32:5911:417:23
11:00
-1:15
30K
18.64 mi11:39:193:52:1512:281:19:16
14:18
+3:18
35K
21.75 mi12:37:564:50:5213:2258:37
18:52
+4:34
25.2M
25.20 mi13:31:215:44:1713:4053:25
15:28
-3:24
Finish
26.22 mi13:47:076:00:0313:4515:46
15:28
0:00

Checkpoints & Pacing

📈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

11:00 /mi

Average Pace

13:45 /mi

Slowest Pace

18:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:32:59

42% of race

Time at Slower Pace

3:27:04

58% of race

Average Pace: 13:44 /mi

Loading chart...
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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi08:22:4735:4311:3035:43
11:30
#2176
10K
6.21 mi08:57:581:10:5411:2535:11
11:19
#2149
15K
9.32 mi09:34:361:47:3211:3236:38
11:47
#2148
20K
12.43 mi10:12:402:25:3611:4338:04
12:15
#2141
Half
13.10 mi10:20:032:32:5911:417:23
11:00
#2097
30K
18.64 mi11:39:193:52:1512:281:19:16
14:18
#2151
35K
21.75 mi12:37:564:50:5213:2258:37
18:52
#2214
25.2M
25.20 mi13:31:215:44:1713:4053:25
15:28
#2193
Finish
26.22 mi13:47:076:00:0313:4515:46
15:28
#2188
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi217613971632144(Top 88%)1388(Top 94%)160(Top 90%)
10K6.21 mi3.10 mi2149+271389+81632128(Top 88%)1383(Top 93%)163(Top 92%)
15K9.32 mi3.11 mi2148+11390-11632144(Top 88%)1388(Top 94%)160(Top 90%)
20K12.43 mi3.11 mi2141+71387+3166-32145(Top 88%)1378(Top 93%)164(Top 92%)
Half13.10 mi0.67 mi2097+441362+25163+31833(Top 75%)1210(Top 82%)141(Top 79%)
30K18.64 mi5.54 mi2151-541372-10165-22239(Top 92%)1395(Top 94%)168(Top 94%)
35K21.75 mi3.11 mi2214-631397-25170-52368(Top 97%)1442(Top 97%)173(Top 97%)
25.2M25.20 mi3.45 mi2193+211383+14168+22084(Top 86%)1283(Top 87%)156(Top 88%)
Finish26.22 mi1.02 mi2188+51378+51682099(Top 86%)1301(Top 88%)157(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×1story
+26ft-31ft

Overall

2144

Males

1388

M40-44

168

5K→10K

3.1 - 6.2 mi

Top 88%
×2story building
+38ft-17ft

Overall

2128

Males

1383

M40-44

171

10K→15K

6.2 - 9.3 mi

Top 88%
×2story building
+26ft-44ft

Overall

2144

Males

1388

M40-44

168

15K→20K

9.3 - 12.4 mi

Top 88%
×1story
+35ft-22ft

Overall

2145

Males

1378

M40-44

171

20K→Half

12.4 - 13.1 mi

Top 75%
×1human
+7ft-13ft

Overall

1833

Males

1210

M40-44

146

Half→30K

13.1 - 18.6 mi

Top 92%
×2story building
+86ft-72ft

Overall

2239

Males

1395

M40-44

170

30K→35K

18.6 - 21.8 mi

Top 97%
×2stacked humans
+39ft-39ft

Overall

2368

Males

1442

M40-44

175

35K→25.2M

21.8 - 25.2 mi

Top 86%
×3story building
+57ft-58ft

Overall

2084

Males

1283

M40-44

157

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×1human
+17ft-12ft

Overall

2099

Males

1301

M40-44

158

Passing Analysis

Category:
Athletes Passed
238*
Passed By
250
Net Change
-12
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2176
5K → 10K53*26+27#2176#2149
10K → 15K2322+1#2149#2148
15K → 20K26*19+7#2148#2141
20K → Half45*1+44#2141#2097
Half → 30K43*97-54#2097#2151
30K → 35K10*73-63#2151#2214
35K → 25.2M32*11+21#2214#2193
25.2M → Finish6*1+5#2193#2188
TOTALS238*250-12

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

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J & A Racing

Big River Race Management

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