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SF MARATHON 2ND HALF 2026

Calvin Tam

Bib: 24841•M•Age: 37

Daly City, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Male)
#0 / 2065
Division (M35-39)
#0 / 309
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
11:15/mi
22:30
↑ 138↓ 680.7%
4M
10:49/mi
44:08
↑ 1631.4%
6M
14:27/mi
1:13:02
↑ 55↓ 830.3%
8M
8:53/mi
1:30:49
↑ 65↓ 1510.8%
10M
12:39/mi
1:56:07
↑ 61↓ 1741.1%
12M
12:21/mi
2:20:50
↑ 41↓ 530.1%
Finish· 13.11 mi
11:56/mi
2:34:04
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:13:02
Pace12:10 /mi
2nd Half
Distance7.11 mi
Time1:21:02
Pace11:24 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:06:4522:3011:1522:30
11:15
-
4M
4.00 mi09:28:2344:0811:0221:38
10:49
-0:26
6M
6.00 mi09:57:171:13:0212:1028:54
14:27
+3:38
8M
8.00 mi10:15:041:30:4911:2117:47
8:53
-5:34
10M
10.00 mi10:40:221:56:0711:3725:18
12:39
+3:46
12M
12.00 mi11:05:052:20:5011:4424:43
12:21
-0:18
Finish
13.11 mi11:18:192:34:0411:4513:14
11:56
-0:25

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

8:53 /mi

Average Pace

11:45 /mi

Slowest Pace

14:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

39:25

26% of race

Time at Steady Pace

1:25:45

56% of race

Time at Slower Pace

28:54

19% of race

Average Pace: 11:45 /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 mi09:06:4522:3011:1522:30
11:15
#2966
4M
4.00 mi09:28:2344:0811:0221:38
10:49
#2876
6M
6.00 mi09:57:171:13:0212:1028:54
14:27
#2977
8M
8.00 mi10:15:041:30:4911:2117:47
8:53
#2951
10M
10.00 mi10:40:221:56:0711:3725:18
12:39
#2975
12M
12.00 mi11:05:052:20:5011:4424:43
12:21
#2925
Finish
13.11 mi11:18:192:34:0411:4513:14
11:56
#2894
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi296617382582610(Top 68%)1534(Top 74%)234(Top 76%)
4M4.00 mi2.00 mi2876+901696+42254+42802(Top 73%)1669(Top 81%)251(Top 81%)
6M6.00 mi2.00 mi2977-1011738-42259-53086(Top 80%)1787(Top 87%)266(Top 86%)
8M8.00 mi2.00 mi2951+261720+18256+32886(Top 75%)1689(Top 82%)255(Top 83%)
10M10.00 mi2.00 mi2975-241732-12258-23035(Top 79%)1749(Top 85%)257(Top 83%)
12M12.00 mi2.00 mi2925+501705+27252+62610(Top 68%)1534(Top 74%)234(Top 76%)
Finish13.11 mi1.11 mi2894+311683+22251+12637(Top 69%)1532(Top 74%)236(Top 76%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 68%
×9story building
+138ft-68ft

Overall

2610

Males

1534

M35-39

234

2M→4M

2.0 - 4.0 mi

Top 73%
×13story building
+163ft-19ft

Overall

2802

Males

1669

M35-39

251

4M→6M

4.0 - 6.0 mi

Top 80%
×4story building
+55ft-83ft

Overall

3086

Males

1787

M35-39

266

6M→8M

6.0 - 8.0 mi

Top 75%
×10story building
+65ft-151ft

Overall

2886

Males

1689

M35-39

255

8M→10M

8.0 - 10.0 mi

Top 79%
×10story building
+61ft-174ft

Overall

3035

Males

1749

M35-39

257

10M→12M

10.0 - 12.0 mi

Top 68%
×3story building
+41ft-53ft

Overall

2610

Males

1534

M35-39

234

12M→Finish

12.0 - 13.1 mi

Top 69%
×1human
+6ft-6ft

Overall

2637

Males

1532

M35-39

236

Passing Analysis

Category:
Athletes Passed
336*
Passed By
264
Net Change
+72
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2966
2M → 4M14151+90#2966#2876
4M → 6M26127-101#2876#2977
6M → 8M44*18+26#2977#2951
8M → 10M29*53-24#2951#2975
10M → 12M6111+50#2975#2925
12M → Finish35*4+31#2925#2894
TOTALS336*264+72

* 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