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SF MARATHON 1ST HALF 2026

Rafael Chacon

Bib: 20407•M•Age: 26

Lathrop, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 14%
Gender (Male)
#0 / 3619
Top 21%
Division (M25-29)
#0 / 796
Top 22%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
8:19/mi
16:38
→ flat
4M
8:53/mi
34:23
↑ 67↓ 69
6M
8:53/mi
52:09
↑ 1231.1%
8M
8:25/mi
1:08:58
↑ 166↓ 531.1%
9.6M
8:25/mi
1:22:26
↑ 68↓ 1931.5%
10M
16:29/mi
1:29:01
↓ 241.1%
10.5M
3:46/mi
1:30:54
↓ 732.7%
12M
12:25/mi
1:49:31
↑ 2803.2%
Finish· 13.11 mi
7:12/mi
1:57:30
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time52:09
Pace8:42 /mi
2nd Half
Distance7.11 mi
Time1:05:21
Pace9:12 /mi
📊Positive Split: 25.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:05:5916:388:1916:38
8:19
-
4M
4.00 mi07:23:4434:238:3617:45
8:53
+0:34
6M
6.00 mi07:41:3052:098:4217:46
8:53
0:00
8M
8.00 mi07:58:191:08:588:3716:49
8:25
-0:28
9.6M
9.60 mi08:11:471:22:268:3513:28
8:25
0:00
10M
10.00 mi08:18:221:29:018:546:35
16:29
+8:04
10.5M
10.50 mi08:20:151:30:548:391:53
3:46
-12:43
12M
12.00 mi08:38:521:49:319:0818:37
12:25
+8:39
Finish
13.11 mi08:46:511:57:308:587:59
7:12
-5:13

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

3:46 /mi

Average Pace

8:58 /mi

Slowest Pace

16:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53

2% of race

Time at Steady Pace

1:30:25

77% of race

Time at Slower Pace

25:12

21% of race

Average Pace: 8:58 /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...
0mi3.3mi6.6mi9.8mi13.1mi
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
2M
2.00 mi07:05:5916:388:1916:38
8:19
#742
4M
4.00 mi07:23:4434:238:3617:45
8:53
#963
6M
6.00 mi07:41:3052:098:4217:46
8:53
#1024
8M
8.00 mi07:58:191:08:588:3716:49
8:25
#902
9.6M
9.60 mi08:11:471:22:268:3513:28
8:25
#1008
10M
10.00 mi08:18:221:29:018:546:35
16:29
#1027
10.5M
10.50 mi08:20:151:30:548:391:53
3:46
#1006
12M
12.00 mi08:38:521:49:319:0818:37
12:25
#1099
Finish
13.11 mi08:46:511:57:308:587:59
7:12
#920
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 17%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:28

Segment Time

9:25/mi

Pace

0.90 mi

Distance

Overall

1102

Men

870

Division

209

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi7426151471500(Top 23%)1100(Top 30%)257(Top 32%)
4M4.00 mi2.00 mi963-221781-166187-401248(Top 19%)990(Top 27%)232(Top 29%)
6M6.00 mi2.00 mi1024-61826-45201-141279(Top 19%)1014(Top 28%)251(Top 32%)
8M8.00 mi2.00 mi902+122741+85179+22740(Top 11%)632(Top 17%)159(Top 20%)
9.6M9.60 mi1.60 mi1008-106813-72199-202012(Top 31%)1329(Top 37%)320(Top 40%)
10M10.00 mi0.40 mi1027-19825-12202-31499(Top 23%)1122(Top 31%)265(Top 33%)
10.5M10.50 mi0.50 mi1006+21813+12200+2327(Top 5%)289(Top 8%)70(Top 9%)
12M12.00 mi1.50 mi1099-93878-65216-161500(Top 23%)1100(Top 30%)257(Top 32%)
Finish13.11 mi1.11 mi920+179750+128176+40166(Top 3%)155(Top 4%)42(Top 5%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 23%
~flat
+5ft-3ft

Overall

1500

Males

1100

M25-29

257

2M→4M

2.0 - 4.0 mi

Top 19%
×4story building
+67ft-69ft

Overall

1248

Males

990

M25-29

232

4M→6M

4.0 - 6.0 mi

Top 19%
×9story building
+123ft-9ft

Overall

1279

Males

1014

M25-29

251

6M→8M

6.0 - 8.0 mi

Top 11%
×12story building
+166ft-53ft

Overall

740

Males

632

M25-29

159

8M→9.6M

8.0 - 9.6 mi

Top 31%
×13story building
+68ft-193ft

Overall

2012

Males

1329

M25-29

320

9.6M→10M

9.6 - 10.0 mi

Top 23%
×2story building
+0ft-24ft

Overall

1499

Males

1122

M25-29

266

10M→10.5M

10.0 - 10.5 mi

Top 5%
×6story building
+1ft-73ft

Overall

327

Males

289

M25-29

70

10.5M→12M

10.5 - 12.0 mi

Top 23%
×21story building
+280ft-26ft

Overall

1500

Males

1100

M25-29

257

12M→Finish

12.0 - 13.1 mi

Top 3%
×7story building
+14ft-89ft

Overall

166

Males

155

M25-29

42

Passing Analysis

Category:
Athletes Passed
446*
Passed By
624
Net Change
-178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#742
2M → 4M14235-221#742#963
4M → 6M2687-61#963#1024
6M → 8M14321+122#1024#902
8M → 9.6M20126-106#902#1008
9.6M → 10M1130-19#1008#1027
10M → 10.5M210+21#1027#1006
10.5M → 12M32125-93#1006#1099
12M → Finish179*0+179#1099#920
TOTALS446*624-178

* 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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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events