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SF MARATHON 2ND HALF 2026

Knoa Tsang Jaffe

Bib: 24628•F•Age: 24

Berkeley, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Female)
#0 / 1760
F20-29
#0 / 218
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
11:30/mi
23:00
↑ 138↓ 680.7%
4M
12:03/mi
47:05
↑ 1631.4%
6M
15:29/mi
1:18:03
↑ 55↓ 830.3%
8M
10:50/mi
1:39:44
↑ 65↓ 1510.8%
10M
12:33/mi
2:04:49
↑ 61↓ 1741.1%
12M
13:01/mi
2:30:52
↑ 41↓ 530.1%
Finish· 13.11 mi
12:17/mi
2:44:29
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:18:03
Pace13:01 /mi
2nd Half
Distance7.11 mi
Time1:26:26
Pace12:09 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:05:1723:0011:3023:00
11:30
-
4M
4.00 mi09:29:2247:0511:4624:05
12:03
+0:33
6M
6.00 mi10:00:201:18:0313:0130:58
15:29
+3:26
8M
8.00 mi10:22:011:39:4412:2821:41
10:50
-4:39
10M
10.00 mi10:47:062:04:4912:2925:05
12:33
+1:43
12M
12.00 mi11:13:092:30:5212:3426:03
13:01
+0:28
Finish
13.11 mi11:26:462:44:2912:3313:37
12:17
-0:44

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

10:50 /mi

Average Pace

12:33 /mi

Slowest Pace

15:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:41

27% of race

Time at Steady Pace

1:02:47

38% of race

Time at Slower Pace

57:01

35% of race

Average Pace: 12:33 /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 mi09:05:1723:0011:3023:00
11:30
#3085
4M
4.00 mi09:29:2247:0511:4624:05
12:03
#3227
6M
6.00 mi10:00:201:18:0313:0130:58
15:29
#3294
8M
8.00 mi10:22:011:39:4412:2821:41
10:50
#3393
10M
10.00 mi10:47:062:04:4912:2925:05
12:33
#3305
12M
12.00 mi11:13:092:30:5212:3426:03
13:01
#3233
Finish
13.11 mi11:26:462:44:2912:3313:37
12:17
#3186
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
2M2.00 mi2.00 mi308512911762890(Top 75%)1212(Top 69%)164(Top 75%)
4M4.00 mi2.00 mi3227-1421381-90184-83290(Top 86%)1426(Top 81%)185(Top 85%)
6M6.00 mi2.00 mi3294-671419-38189-53381(Top 88%)1465(Top 83%)191(Top 88%)
8M8.00 mi2.00 mi3393-991477-58193-43619(Top 94%)1632(Top 93%)208(Top 95%)
10M10.00 mi2.00 mi3305+881423+54190+32989(Top 78%)1244(Top 71%)169(Top 78%)
12M12.00 mi2.00 mi3233+721383+40186+42890(Top 75%)1212(Top 69%)164(Top 75%)
Finish13.11 mi1.11 mi3186+471363+20184+22805(Top 73%)1185(Top 67%)159(Top 73%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 75%
×9story building
+138ft-68ft

Overall

2890

Females

1212

F20-24

164

2M→4M

2.0 - 4.0 mi

Top 86%
×13story building
+163ft-19ft

Overall

3290

Females

1426

F20-24

185

4M→6M

4.0 - 6.0 mi

Top 88%
×4story building
+55ft-83ft

Overall

3381

Females

1465

F20-24

191

6M→8M

6.0 - 8.0 mi

Top 94%
×10story building
+65ft-151ft

Overall

3619

Females

1632

F20-24

208

8M→10M

8.0 - 10.0 mi

Top 78%
×10story building
+61ft-174ft

Overall

2989

Females

1244

F20-24

169

10M→12M

10.0 - 12.0 mi

Top 75%
×3story building
+41ft-53ft

Overall

2890

Females

1212

F20-24

164

12M→Finish

12.0 - 13.1 mi

Top 73%
×1human
+6ft-6ft

Overall

2805

Females

1185

F20-24

159

Passing Analysis

Category:
Athletes Passed
284*
Passed By
385
Net Change
-101
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3085
2M → 4M43185-142#3085#3227
4M → 6M2390-67#3227#3294
6M → 8M4*103-99#3294#3393
8M → 10M93*5+88#3393#3305
10M → 12M731+72#3305#3233
12M → Finish48*1+47#3233#3186
TOTALS284*385-101

* 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