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SF MARATHON 1ST HALF 2026

Chris Seifert

Bib: 18636•M•Age: 41

Sunnyvale, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6575
Gender (Male)
#0 / 3619
Masters (Masters Men)
#0 / 1030
Division (M40-44)
#0 / 319
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
11:33/mi
23:06
→ flat
4M
11:47/mi
46:39
↑ 67↓ 69
6M
11:25/mi
1:09:30
↑ 1231.1%
8M
12:59/mi
1:35:28
↑ 166↓ 531.1%
9.6M
9:39/mi
1:50:55
↑ 68↓ 1931.5%
10M
22:39/mi
1:59:58
↓ 241.1%
10.5M
6:14/mi
2:03:05
↓ 732.7%
12M
15:03/mi
2:25:40
↑ 2803.2%
Finish· 13.11 mi
11:05/mi
2:37:58
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:09:30
Pace11:35 /mi
2nd Half
Distance7.11 mi
Time1:28:28
Pace12:27 /mi
📊Positive Split: 27.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:12:4723:0611:3323:06
11:33
-
4M
4.00 mi07:36:2046:3911:4023:33
11:47
+0:14
6M
6.00 mi07:59:111:09:3011:3522:51
11:25
-0:22
8M
8.00 mi08:25:091:35:2811:5625:58
12:59
+1:34
9.6M
9.60 mi08:40:361:50:5511:3315:27
9:39
-3:20
10M
10.00 mi08:49:391:59:5812:009:03
22:39
+13:00
10.5M
10.50 mi08:52:462:03:0511:433:07
6:14
-16:25
12M
12.00 mi09:15:212:25:4012:0822:35
15:03
+8:49
Finish
13.11 mi09:27:392:37:5812:0312:18
11:05
-3:58

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

6:14 /mi

Average Pace

12:03 /mi

Slowest Pace

22:39 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07

2% of race

Time at Steady Pace

2:03:13

78% of race

Time at Slower Pace

31:38

20% of race

Average Pace: 12:03 /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 mi07:12:4723:0611:3323:06
11:33
#5463
4M
4.00 mi07:36:2046:3911:4023:33
11:47
#5350
6M
6.00 mi07:59:111:09:3011:3522:51
11:25
#5022
8M
8.00 mi08:25:091:35:2811:5625:58
12:59
#5159
9.6M
9.60 mi08:40:361:50:5511:3315:27
9:39
#4942
10M
10.00 mi08:49:391:59:5812:009:03
22:39
#4914
10.5M
10.50 mi08:52:462:03:0511:433:07
6:14
#4932
12M
12.00 mi09:15:212:25:4012:0822:35
15:03
#4661
Finish
13.11 mi09:27:392:37:5812:0312:18
11:05
#4574
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 76%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:10

Segment Time

13:31/mi

Pace

0.90 mi

Distance

Overall

4970

Men

2946

Division

247

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
2M2.00 mi2.00 mi546332262813592(Top 55%)2262(Top 63%)187(Top 59%)
4M4.00 mi2.00 mi5350+1133187+39280+15213(Top 79%)3121(Top 86%)265(Top 83%)
6M6.00 mi2.00 mi5022+3283056+131258+224420(Top 67%)2769(Top 77%)226(Top 71%)
8M8.00 mi2.00 mi5159-1373126-70269-115422(Top 82%)3224(Top 89%)279(Top 87%)
9.6M9.60 mi1.60 mi4942+2173017+109257+123551(Top 54%)2175(Top 60%)180(Top 56%)
10M10.00 mi0.40 mi4914+283003+14258-14828(Top 73%)2866(Top 79%)242(Top 76%)
10.5M10.50 mi0.50 mi4932-183009-62585619(Top 85%)3228(Top 89%)277(Top 87%)
12M12.00 mi1.50 mi4661+2712871+138243+153592(Top 55%)2262(Top 63%)187(Top 59%)
Finish13.11 mi1.11 mi4574+872818+53237+64119(Top 63%)2538(Top 70%)209(Top 66%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 55%
~flat
+5ft-3ft

Overall

3592

Males

2262

M40-44

187

2M→4M

2.0 - 4.0 mi

Top 79%
×4story building
+67ft-69ft

Overall

5213

Males

3121

M40-44

265

4M→6M

4.0 - 6.0 mi

Top 67%
×9story building
+123ft-9ft

Overall

4420

Males

2769

M40-44

226

6M→8M

6.0 - 8.0 mi

Top 82%
×12story building
+166ft-53ft

Overall

5422

Males

3224

M40-44

279

8M→9.6M

8.0 - 9.6 mi

Top 54%
×13story building
+68ft-193ft

Overall

3551

Males

2175

M40-44

180

9.6M→10M

9.6 - 10.0 mi

Top 73%
×2story building
+0ft-24ft

Overall

4828

Males

2866

M40-44

242

10M→10.5M

10.0 - 10.5 mi

Top 85%
×6story building
+1ft-73ft

Overall

5619

Males

3228

M40-44

277

10.5M→12M

10.5 - 12.0 mi

Top 55%
×21story building
+280ft-26ft

Overall

3592

Males

2262

M40-44

187

12M→Finish

12.0 - 13.1 mi

Top 63%
×7story building
+14ft-89ft

Overall

4119

Males

2538

M40-44

209

Passing Analysis

Category:
Athletes Passed
1311*
Passed By
422
Net Change
+889
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5463
2M → 4M18370+113#5463#5350
4M → 6M345*17+328#5350#5022
6M → 8M71*208-137#5022#5159
8M → 9.6M25336+217#5159#4942
9.6M → 10M6234+28#4942#4914
10M → 10.5M220-18#4914#4932
10.5M → 12M296*25+271#4932#4661
12M → Finish99*12+87#4661#4574
TOTALS1311*422+889

* 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