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SF MARATHON 1ST HALF 2026

Aaron Williams

Bib: 14474•M•Age: 51

Santa Clara, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6575
Top 46%
Gender (Male)
#0 / 3619
Masters (Masters Men)
#0 / 1030
Top 46%
Division (M50-54)
#0 / 196
Top 46%
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
9:52/mi
19:44
→ flat
4M
9:46/mi
39:16
↑ 67↓ 69
6M
10:33/mi
1:00:22
↑ 1231.1%
8M
10:04/mi
1:20:31
↑ 166↓ 531.1%
9.6M
10:04/mi
1:36:38
↑ 68↓ 1931.5%
10M
19:44/mi
1:44:31
↓ 241.1%
10.5M
4:48/mi
1:46:55
↓ 732.7%
12M
15:04/mi
2:09:31
↑ 2803.2%
Finish· 13.11 mi
10:11/mi
2:20:49
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:00:22
Pace10:04 /mi
2nd Half
Distance7.11 mi
Time1:20:27
Pace11:19 /mi
📊Positive Split: 33.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:00:5619:449:5219:44
9:52
-
4M
4.00 mi07:20:2839:169:4919:32
9:46
-0:06
6M
6.00 mi07:41:341:00:2210:0421:06
10:33
+0:47
8M
8.00 mi08:01:431:20:3110:0420:09
10:04
-0:29
9.6M
9.60 mi08:17:501:36:3810:0416:07
10:04
0:00
10M
10.00 mi08:25:431:44:3110:277:53
19:44
+9:40
10.5M
10.50 mi08:28:071:46:5510:112:24
4:48
-14:56
12M
12.00 mi08:50:432:09:3110:4822:36
15:04
+10:16
Finish
13.11 mi09:02:012:20:4910:4511:18
10:11
-4:53

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

4:48 /mi

Average Pace

10:45 /mi

Slowest Pace

19:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24

2% of race

Time at Steady Pace

1:47:56

77% of race

Time at Slower Pace

30:29

22% of race

Average Pace: 10:44 /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...
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 mi07:00:5619:449:5219:44
9:52
#2813
4M
4.00 mi07:20:2839:169:4919:32
9:46
#2588
6M
6.00 mi07:41:341:00:2210:0421:06
10:33
#2857
8M
8.00 mi08:01:431:20:3110:0420:09
10:04
#2726
9.6M
9.60 mi08:17:501:36:3810:0416:07
10:04
#2913
10M
10.00 mi08:25:431:44:3110:277:53
19:44
#2946
10.5M
10.50 mi08:28:071:46:5510:112:24
4:48
#2929
12M
12.00 mi08:50:432:09:3110:4822:36
15:04
#3042
Finish
13.11 mi09:02:012:20:4910:4511:18
10:11
#3017
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 47%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:17

Segment Time

11:26/mi

Pace

0.90 mi

Distance

Overall

3120

Men

2069

Division

95

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
2M2.00 mi2.00 mi28131945913596(Top 55%)2264(Top 63%)101(Top 52%)
4M4.00 mi2.00 mi2588+2251812+13378+132489(Top 38%)1758(Top 49%)74(Top 38%)
6M6.00 mi2.00 mi2857-2691968-15688-103383(Top 51%)2254(Top 62%)101(Top 52%)
8M8.00 mi2.00 mi2726+1311915+5386+22464(Top 37%)1783(Top 49%)81(Top 41%)
9.6M9.60 mi1.60 mi2913-1871996-8192-64089(Top 62%)2462(Top 68%)120(Top 61%)
10M10.00 mi0.40 mi2946-332014-1894-23327(Top 51%)2169(Top 60%)104(Top 53%)
10.5M10.50 mi0.50 mi2929+172007+793+12632(Top 40%)1804(Top 50%)80(Top 41%)
12M12.00 mi1.50 mi3042-1132060-5391+23596(Top 55%)2264(Top 63%)101(Top 52%)
Finish13.11 mi1.11 mi3017+252042+18913099(Top 47%)2019(Top 56%)91(Top 46%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 55%
~flat
+5ft-3ft

Overall

3596

Males

2264

M50-54

101

2M→4M

2.0 - 4.0 mi

Top 38%
×4story building
+67ft-69ft

Overall

2489

Males

1758

M50-54

74

4M→6M

4.0 - 6.0 mi

Top 51%
×9story building
+123ft-9ft

Overall

3383

Males

2254

M50-54

101

6M→8M

6.0 - 8.0 mi

Top 37%
×12story building
+166ft-53ft

Overall

2464

Males

1783

M50-54

81

8M→9.6M

8.0 - 9.6 mi

Top 62%
×13story building
+68ft-193ft

Overall

4089

Males

2462

M50-54

120

9.6M→10M

9.6 - 10.0 mi

Top 51%
×2story building
+0ft-24ft

Overall

3327

Males

2169

M50-54

104

10M→10.5M

10.0 - 10.5 mi

Top 40%
×6story building
+1ft-73ft

Overall

2632

Males

1804

M50-54

80

10.5M→12M

10.5 - 12.0 mi

Top 55%
×21story building
+280ft-26ft

Overall

3596

Males

2264

M50-54

101

12M→Finish

12.0 - 13.1 mi

Top 47%
×7story building
+14ft-89ft

Overall

3099

Males

2019

M50-54

91

Passing Analysis

Category:
Athletes Passed
672*
Passed By
876
Net Change
-204
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2813
2M → 4M27348+225#2813#2588
4M → 6M23292-269#2588#2857
6M → 8M203*72+131#2857#2726
8M → 9.6M21208-187#2726#2913
9.6M → 10M3467-33#2913#2946
10M → 10.5M225+17#2946#2929
10.5M → 12M41154-113#2929#3042
12M → Finish55*30+25#3042#3017
TOTALS672*876-204

* 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