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SF MARATHON 2ND HALF 2026

Mengxian Liu

Bib: 23121•M•Age: 33

San Mateo, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Male)
#0 / 2065
Division (M30-34)
#0 / 453
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
20:57
Rank: #2429
Start → 2M
10:28/mi
20:57 split
4M
41:16
Rank: #2427 (+2)
2M → 4M
10:10/mi
20:19 split
6M
1:06:46
Rank: #2371 (+56)
4M → 6M
12:45/mi
25:30 split
8M
1:20:59
Rank: #2158 (+213)
6M → 8M
7:06/mi
14:13 split
10M
1:44:46
Rank: #2299 (-141)
8M → 10M
11:54/mi
23:47 split
12M
2:08:34
Rank: #2312 (-13)
10M → 12M
11:54/mi
23:48 split
Finish· 13.11 mi
2:24:01
Rank: #2462 (-150)
12M → Finish
13:56/mi
15:27 split

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:06:46
Pace11:08 /mi
2nd Half
Distance7.11 mi
Time1:17:15
Pace10:52 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:10:0820:5710:2820:57
10:28
-
4M
4.00 mi09:30:2741:1610:1920:19
10:10
-0:18
6M
6.00 mi09:55:571:06:4611:0825:30
12:45
+2:35
8M
8.00 mi10:10:101:20:5910:0714:13
7:06
-5:39
10M
10.00 mi10:33:571:44:4610:2923:47
11:54
+4:48
12M
12.00 mi10:57:452:08:3410:4323:48
11:54
0:00
Finish
13.11 mi11:13:122:24:0110:5915:27
13:56
+2:02

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

7:06 /mi

Average Pace

10:59 /mi

Slowest Pace

13:56 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:29

39% of race

Time at Steady Pace

1:13:05

51% of race

Time at Slower Pace

15:27

11% of race

Average Pace: 10:59 /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 mi09:10:0820:5710:2820:57
10:28
#2429
4M
4.00 mi09:30:2741:1610:1920:19
10:10
#2427
6M
6.00 mi09:55:571:06:4611:0825:30
12:45
#2371
8M
8.00 mi10:10:101:20:5910:0714:13
7:06
#2158
10M
10.00 mi10:33:571:44:4610:2923:47
11:54
#2299
12M
12.00 mi10:57:452:08:3410:4323:48
11:54
#2312
Finish
13.11 mi11:13:122:24:0110:5915:27
13:56
#2462
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi242915113422386(Top 62%)1438(Top 70%)320(Top 71%)
4M4.00 mi2.00 mi2427+21495+16338+42457(Top 64%)1510(Top 73%)341(Top 75%)
6M6.00 mi2.00 mi2371+561485+10335+32310(Top 60%)1441(Top 70%)324(Top 72%)
8M8.00 mi2.00 mi2158+2131378+107316+191450(Top 38%)989(Top 48%)221(Top 49%)
10M10.00 mi2.00 mi2299-1411450-72332-162721(Top 71%)1616(Top 78%)373(Top 82%)
12M12.00 mi2.00 mi2312-131445+5327+52386(Top 62%)1438(Top 70%)320(Top 71%)
Finish13.11 mi1.11 mi2462-1501504-59342-153292(Top 86%)1830(Top 89%)408(Top 90%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 62%
×9stories
+138ft-68ft

Overall

2386

Males

1438

M30-34

321

2M→4M

2.0 - 4.0 mi

Top 64%
×13stories
+163ft-19ft

Overall

2457

Males

1510

M30-34

341

4M→6M

4.0 - 6.0 mi

Top 60%
×4stories
+55ft-83ft

Overall

2310

Males

1441

M30-34

324

6M→8M

6.0 - 8.0 mi

Top 38%
×10stories
+65ft-151ft

Overall

1450

Males

989

M30-34

221

8M→10M

8.0 - 10.0 mi

Top 71%
×10stories
+61ft-174ft

Overall

2721

Males

1616

M30-34

374

10M→12M

10.0 - 12.0 mi

Top 62%
×3stories
+41ft-53ft

Overall

2386

Males

1438

M30-34

321

12M→Finish

12.0 - 13.1 mi

Top 86%
×1human
+6ft-6ft

Overall

3292

Males

1830

M30-34

408

Passing Analysis

Category:
Athletes Passed
469*
Passed By
502
Net Change
-33
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2429
2M → 4M106104+2#2429#2427
4M → 6M9640+56#2427#2371
6M → 8M2141+213#2371#2158
8M → 10M13*154-141#2158#2299
10M → 12M3548-13#2299#2312
12M → Finish5*155-150#2312#2462
TOTALS469*502-33

* 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