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SF MARATHON 2ND HALF 2026

Chialing Tsui

Bib: 24533•F•Age: 52

San Diego, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 3840
Gender (Female)
#0 / 1760
Masters (Masters Women)
#0 / 365
Division (F50-54)
#0 / 65
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
23:31
Rank: #3194
Start → 2M
23:31 | 11:45/mi
4M
46:34
Rank: #3171 (+23)
2M → 4M
23:03 | 11:32/mi
6M
1:16:35
Rank: #3215 (-44)
4M → 6M
30:01 | 15:00/mi
8M
1:35:23
Rank: #3193 (+22)
6M → 8M
18:48 | 9:24/mi
10M
2:01:50
Rank: #3201 (-8)
8M → 10M
26:27 | 13:14/mi
12M
2:28:52
Rank: #3179 (+22)
10M → 12M
27:02 | 13:31/mi
Finish· 13.11 mi
2:44:20
Rank: #3180 (-1)
12M → Finish
15:28 | 13:57/mi

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:16:35
Pace12:46 /mi
2nd Half
Distance7.11 mi
Time1:27:45
Pace12:21 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:03:5023:3111:4523:31
11:45
-
4M
4.00 mi09:26:5346:3411:3923:03
11:32
-0:13
6M
6.00 mi09:56:541:16:3512:4630:01
15:00
+3:28
8M
8.00 mi10:15:421:35:2311:5518:48
9:24
-5:36
10M
10.00 mi10:42:092:01:5012:1126:27
13:14
+3:50
12M
12.00 mi11:09:112:28:5212:2427:02
13:31
+0:17
Finish
13.11 mi11:24:392:44:2012:3215:28
13:57
+0:26

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

9:24 /mi

Average Pace

12:32 /mi

Slowest Pace

15:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:05:22

40% of race

Time at Steady Pace

1:08:57

42% of race

Time at Slower Pace

30:01

18% of race

Average Pace: 12:32 /mi

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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 mi09:03:5023:3111:4523:31
11:45
#3194
4M
4.00 mi09:26:5346:3411:3923:03
11:32
#3171
6M
6.00 mi09:56:541:16:3512:4630:01
15:00
#3215
8M
8.00 mi10:15:421:35:2311:5518:48
9:24
#3193
10M
10.00 mi10:42:092:01:5012:1126:27
13:14
#3201
12M
12.00 mi11:09:112:28:5212:2427:02
13:31
#3179
Finish
13.11 mi11:24:392:44:2012:3215:28
13:57
#3180
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
2M2.00 mi2.00 mi31941355383066(Top 80%)1311(Top 74%)33(Top 51%)
4M4.00 mi2.00 mi3171+231345+10383114(Top 81%)1315(Top 75%)40(Top 62%)
6M6.00 mi2.00 mi3215-441370-2541-33258(Top 85%)1389(Top 79%)40(Top 62%)
8M8.00 mi2.00 mi3193+221357+1340+13154(Top 82%)1335(Top 76%)39(Top 60%)
10M10.00 mi2.00 mi3201-81360-3403220(Top 84%)1385(Top 79%)40(Top 62%)
12M12.00 mi2.00 mi3179+221351+939+13066(Top 80%)1311(Top 74%)33(Top 51%)
Finish13.11 mi1.11 mi3180-11358-738+13295(Top 86%)1451(Top 82%)37(Top 57%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 80%
×9stories
+138ft-68ft

Overall

3066

Females

1311

F50-54

33

2M→4M

2.0 - 4.0 mi

Top 81%
×13stories
+163ft-19ft

Overall

3114

Females

1315

F50-54

40

4M→6M

4.0 - 6.0 mi

Top 85%
×4stories
+55ft-83ft

Overall

3258

Females

1389

F50-54

40

6M→8M

6.0 - 8.0 mi

Top 82%
×10stories
+65ft-151ft

Overall

3154

Females

1335

F50-54

39

8M→10M

8.0 - 10.0 mi

Top 84%
×10stories
+61ft-174ft

Overall

3220

Females

1385

F50-54

40

10M→12M

10.0 - 12.0 mi

Top 80%
×3stories
+41ft-53ft

Overall

3066

Females

1311

F50-54

33

12M→Finish

12.0 - 13.1 mi

Top 86%
×1human
+6ft-6ft

Overall

3295

Females

1451

F50-54

37

Passing Analysis

Category:
Athletes Passed
251*
Passed By
237
Net Change
+14
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3194
2M → 4M8461+23#3194#3171
4M → 6M3478-44#3171#3215
6M → 8M38*16+22#3215#3193
8M → 10M26*34-8#3193#3201
10M → 12M4624+22#3201#3179
12M → Finish23*24-1#3179#3180
TOTALS251*237+14

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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