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SF MARATHON 1ST HALF 2026

Siriamma Williams

Bib: 19979•M•Age: 30

Pacifica, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 31%
Gender (Male)
#0 / 3619
Top 41%
Division (M30-34)
#0 / 772
Top 42%
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
9:00/mi
18:01
→ flat
4M
9:22/mi
36:44
↑ 67↓ 69
6M
12:10/mi
1:01:04
↑ 1231.1%
8M
9:07/mi
1:19:17
↑ 166↓ 531.1%
9.6M
9:07/mi
1:33:52
↑ 68↓ 1931.5%
10M
16:34/mi
1:40:29
↓ 241.1%
10.5M
4:22/mi
1:42:40
↓ 732.7%
12M
11:44/mi
2:00:16
↑ 2803.2%
Finish· 13.11 mi
9:11/mi
2:10:27
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:01:04
Pace10:11 /mi
2nd Half
Distance7.11 mi
Time1:09:23
Pace9:46 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:08:3818:019:0018:01
9:00
-
4M
4.00 mi07:27:2136:449:1118:43
9:22
+0:22
6M
6.00 mi07:51:411:01:0410:1124:20
12:10
+2:48
8M
8.00 mi08:09:541:19:179:5518:13
9:07
-3:03
9.6M
9.60 mi08:24:291:33:529:4714:35
9:07
0:00
10M
10.00 mi08:31:061:40:2910:036:37
16:34
+7:27
10.5M
10.50 mi08:33:171:42:409:472:11
4:22
-12:12
12M
12.00 mi08:50:532:00:1610:0117:36
11:44
+7:22
Finish
13.11 mi09:01:042:10:279:5710:11
9:11
-2:33

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

4:22 /mi

Average Pace

9:57 /mi

Slowest Pace

16:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11

2% of race

Time at Steady Pace

1:19:43

61% of race

Time at Slower Pace

48:33

37% of race

Average Pace: 9:57 /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 mi07:08:3818:019:0018:01
9:00
#1523
4M
4.00 mi07:27:2136:449:1118:43
9:22
#1716
6M
6.00 mi07:51:411:01:0410:1124:20
12:10
#3034
8M
8.00 mi08:09:541:19:179:5518:13
9:07
#2521
9.6M
9.60 mi08:24:291:33:529:4714:35
9:07
#2521
10M
10.00 mi08:31:061:40:2910:036:37
16:34
#2420
10.5M
10.50 mi08:33:171:42:409:472:11
4:22
#2389
12M
12.00 mi08:50:532:00:1610:0117:36
11:44
#2104
Finish
13.11 mi09:01:042:10:279:5710:11
9:11
#2068
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 23%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:48

Segment Time

9:47/mi

Pace

0.90 mi

Distance

Overall

1484

Men

1132

Division

258

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi152311592521047(Top 16%)815(Top 23%)186(Top 24%)
4M4.00 mi2.00 mi1716-1931298-139284-321932(Top 29%)1429(Top 39%)306(Top 40%)
6M6.00 mi2.00 mi3034-13182074-776433-1495236(Top 80%)3138(Top 87%)676(Top 88%)
8M8.00 mi2.00 mi2521+5131793+281377+561396(Top 21%)1089(Top 30%)234(Top 30%)
9.6M9.60 mi1.60 mi25211772+21373+42892(Top 44%)1822(Top 50%)392(Top 51%)
10M10.00 mi0.40 mi2420+1011708+64362+111578(Top 24%)1181(Top 33%)265(Top 34%)
10.5M10.50 mi0.50 mi2389+311689+19358+41508(Top 23%)1161(Top 32%)261(Top 34%)
12M12.00 mi1.50 mi2104+2851508+181331+271047(Top 16%)815(Top 23%)186(Top 24%)
Finish13.11 mi1.11 mi2068+361486+22325+61859(Top 28%)1347(Top 37%)301(Top 39%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 16%
~flat
+5ft-3ft

Overall

1047

Males

815

M30-34

187

2M→4M

2.0 - 4.0 mi

Top 29%
×4story building
+67ft-69ft

Overall

1932

Males

1429

M30-34

308

4M→6M

4.0 - 6.0 mi

Top 80%
×9story building
+123ft-9ft

Overall

5236

Males

3138

M30-34

678

6M→8M

6.0 - 8.0 mi

Top 21%
×12story building
+166ft-53ft

Overall

1396

Males

1089

M30-34

235

8M→9.6M

8.0 - 9.6 mi

Top 44%
×13story building
+68ft-193ft

Overall

2892

Males

1822

M30-34

393

9.6M→10M

9.6 - 10.0 mi

Top 24%
×2story building
+0ft-24ft

Overall

1578

Males

1181

M30-34

266

10M→10.5M

10.0 - 10.5 mi

Top 23%
×6story building
+1ft-73ft

Overall

1508

Males

1161

M30-34

262

10.5M→12M

10.5 - 12.0 mi

Top 16%
×21story building
+280ft-26ft

Overall

1047

Males

815

M30-34

187

12M→Finish

12.0 - 13.1 mi

Top 28%
×7story building
+14ft-89ft

Overall

1859

Males

1347

M30-34

301

Passing Analysis

Category:
Athletes Passed
1161*
Passed By
1706
Net Change
-545
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1523
2M → 4M43236-193#1523#1716
4M → 6M01318-1318#1716#3034
6M → 8M516*3+513#3034#2521
8M → 9.6M1171170#2521#2521
9.6M → 10M1032+101#2521#2420
10M → 10.5M310+31#2420#2389
10.5M → 12M29712+285#2389#2104
12M → Finish54*18+36#2104#2068
TOTALS1161*1706-545

* 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