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SF MARATHON 1ST HALF 2026

Albert Tsai

Bib: 15871•M•Age: 40

Los Altos, 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
10:24/mi
20:48
→ flat
4M
10:41/mi
42:09
↑ 67↓ 69
6M
11:02/mi
1:04:14
↑ 1231.1%
8M
11:58/mi
1:28:10
↑ 166↓ 531.1%
9.6M
11:58/mi
1:47:18
↑ 68↓ 1931.5%
10M
27:02/mi
1:58:06
↓ 241.1%
10.5M
6:34/mi
2:01:23
↓ 732.7%
12M
23:00/mi
2:35:53
↑ 2803.2%
Finish· 13.11 mi
16:39/mi
2:54:21
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:04:14
Pace10:42 /mi
2nd Half
Distance7.11 mi
Time1:50:07
Pace15:29 /mi
📊Positive Split: 71.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:03:4720:4810:2420:48
10:24
-
4M
4.00 mi07:25:0842:0910:3221:21
10:41
+0:17
6M
6.00 mi07:47:131:04:1410:4222:05
11:02
+0:21
8M
8.00 mi08:11:091:28:1011:0123:56
11:58
+0:56
9.6M
9.60 mi08:30:171:47:1811:1119:08
11:58
0:00
10M
10.00 mi08:41:051:58:0611:4910:48
27:02
+15:04
10.5M
10.50 mi08:44:222:01:2311:343:17
6:34
-20:28
12M
12.00 mi09:18:522:35:5312:5934:30
23:00
+16:26
Finish
13.11 mi09:37:202:54:2113:1818:28
16:39
-6:21

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

6:34 /mi

Average Pace

13:18 /mi

Slowest Pace

27:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17

2% of race

Time at Steady Pace

1:47:18

62% of race

Time at Slower Pace

1:03:46

37% of race

Average Pace: 13:18 /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 mi07:03:4720:4810:2420:48
10:24
#3748
4M
4.00 mi07:25:0842:0910:3221:21
10:41
#3753
6M
6.00 mi07:47:131:04:1410:4222:05
11:02
#3797
8M
8.00 mi08:11:091:28:1011:0123:56
11:58
#3976
9.6M
9.60 mi08:30:171:47:1811:1119:08
11:58
#4410
10M
10.00 mi08:41:051:58:0611:4910:48
27:02
#4685
10.5M
10.50 mi08:44:222:01:2311:343:17
6:34
#4744
12M
12.00 mi09:18:522:35:5312:5934:30
23:00
#5553
Finish
13.11 mi09:37:202:54:2113:1818:28
16:39
#5796
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 91%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

14:05

Segment Time

15:39/mi

Pace

0.90 mi

Distance

Overall

5980

Men

3360

Division

298

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
2M2.00 mi2.00 mi374824522116497(Top 99%)3576(Top 99%)314(Top 98%)
4M4.00 mi2.00 mi3753-52453-1204+73811(Top 58%)2479(Top 68%)206(Top 65%)
6M6.00 mi2.00 mi3797-442473-20203+13947(Top 60%)2545(Top 70%)209(Top 66%)
8M8.00 mi2.00 mi3976-1792585-112220-174530(Top 69%)2861(Top 79%)246(Top 77%)
9.6M9.60 mi1.60 mi4410-4342769-184233-135806(Top 88%)3297(Top 91%)286(Top 90%)
10M10.00 mi0.40 mi4685-2752895-126246-136028(Top 92%)3381(Top 93%)298(Top 93%)
10.5M10.50 mi0.50 mi4744-592922-27250-45932(Top 90%)3351(Top 93%)294(Top 92%)
12M12.00 mi1.50 mi5553-8093250-328278-286497(Top 99%)3576(Top 99%)314(Top 98%)
Finish13.11 mi1.11 mi5796-2433336-86287-96410(Top 97%)3534(Top 98%)311(Top 97%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 99%
~flat
+5ft-3ft

Overall

6497

Males

3576

M40-44

314

2M→4M

2.0 - 4.0 mi

Top 58%
×4story building
+67ft-69ft

Overall

3811

Males

2479

M40-44

206

4M→6M

4.0 - 6.0 mi

Top 60%
×9story building
+123ft-9ft

Overall

3947

Males

2545

M40-44

209

6M→8M

6.0 - 8.0 mi

Top 69%
×12story building
+166ft-53ft

Overall

4530

Males

2861

M40-44

246

8M→9.6M

8.0 - 9.6 mi

Top 88%
×13story building
+68ft-193ft

Overall

5806

Males

3297

M40-44

286

9.6M→10M

9.6 - 10.0 mi

Top 92%
×2story building
+0ft-24ft

Overall

6028

Males

3381

M40-44

298

10M→10.5M

10.0 - 10.5 mi

Top 90%
×6story building
+1ft-73ft

Overall

5932

Males

3351

M40-44

294

10.5M→12M

10.5 - 12.0 mi

Top 99%
×21story building
+280ft-26ft

Overall

6497

Males

3576

M40-44

314

12M→Finish

12.0 - 13.1 mi

Top 97%
×7story building
+14ft-89ft

Overall

6410

Males

3534

M40-44

311

Passing Analysis

Category:
Athletes Passed
375*
Passed By
2423
Net Change
-2048
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3748
2M → 4M169174-5#3748#3753
4M → 6M103*147-44#3753#3797
6M → 8M74*253-179#3797#3976
8M → 9.6M3437-434#3976#4410
9.6M → 10M9284-275#4410#4685
10M → 10.5M362-59#4685#4744
10.5M → 12M1*810-809#4744#5553
12M → Finish13*256-243#5553#5796
TOTALS375*2423-2048

* 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