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SF MARATHON 2026

Calvin Chow

Bib: 9070•M•Age: 32

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 7166
Top 50%
Gender (Male)
#0 / 5052
Division (M30-34)
#0 / 1040
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
20:22
Rank: #4510
Start → 2M
20:22 | 10:11/mi
4M
40:56
Rank: #4469 (+41)
2M → 4M
20:34 | 10:17/mi
6M
1:01:55
Rank: #4484 (-15)
4M → 6M
20:59 | 10:29/mi
8M
1:23:07
Rank: #4623 (-139)
6M → 8M
21:12 | 10:36/mi
9.6M
1:40:41
Rank: #4531 (+92)
8M → 9.6M
17:34 | 10:59/mi
10M
1:43:35
Rank: #4529 (+2)
9.6M → 10M
2:54 | 7:15/mi
10.5M
1:50:53
Rank: #4518 (+11)
10M → 10.5M
7:18 | 14:36/mi
12M
2:06:01
Rank: #4469 (+49)
10.5M → 12M
15:08 | 10:05/mi
14M
2:27:47
Rank: #4332 (+137)
12M → 14M
21:46 | 10:53/mi
16M
2:44:39
Rank: #4082 (+250)
14M → 16M
16:52 | 8:26/mi
18M
3:08:09
Rank: #4083 (-1)
16M → 18M
23:30 | 11:45/mi
20M
3:28:49
Rank: #3923 (+160)
18M → 20M
20:40 | 10:20/mi
22M
3:49:26
Rank: #3860 (+63)
20M → 22M
20:37 | 10:18/mi
24M
4:10:58
Rank: #3707 (+153)
22M → 24M
21:32 | 10:46/mi
Finish· 26.22 mi
4:33:50
Rank: #3579 (+128)
24M → Finish
22:52 | 10:18/mi

The Course

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Half Splits

1st Half· via 14M
Distance14.00 mi
Time2:27:47
Pace10:33 /mi
2nd Half✓ Faster
Distance12.22 mi
Time2:06:03
Pace10:19 /mi
📊Negative Split: 14.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:48:5120:2210:1120:22
10:11
-
4M
4.00 mi06:09:2540:5610:1420:34
10:17
+0:06
6M
6.00 mi06:30:241:01:5510:1920:59
10:29
+0:12
8M
8.00 mi06:51:361:23:0710:2321:12
10:36
+0:07
9.6M
9.60 mi07:09:101:40:4110:2917:34
10:59
+0:23
10M
10.00 mi07:12:041:43:3510:222:54
7:15
-3:44
10.5M
10.50 mi07:19:221:50:5310:347:18
14:36
+7:21
12M
12.00 mi07:34:302:06:0110:3015:08
10:05
-4:31
14M
14.00 mi07:56:162:27:4710:3321:46
10:53
+0:48
16M
16.00 mi08:13:082:44:3910:1716:52
8:26
-2:27
18M
18.00 mi08:36:383:08:0910:2723:30
11:45
+3:19
20M
20.00 mi08:57:183:28:4910:2620:40
10:20
-1:25
22M
22.00 mi09:17:553:49:2610:2620:37
10:18
-0:02
24M
24.00 mi09:39:274:10:5810:2721:32
10:46
+0:28
Finish
26.22 mi10:02:194:33:5010:2722:52
10:18
-0:28

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

7:15 /mi

Average Pace

10:27 /mi

Slowest Pace

14:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

19:46

7% of race

Time at Steady Pace

3:43:16

82% of race

Time at Slower Pace

30:48

11% of race

Average Pace: 10:27 /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...
0mi6.6mi13.1mi19.7mi26.2mi
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 mi05:48:5120:2210:1120:22
10:11
#4510
4M
4.00 mi06:09:2540:5610:1420:34
10:17
#4469
6M
6.00 mi06:30:241:01:5510:1920:59
10:29
#4484
8M
8.00 mi06:51:361:23:0710:2321:12
10:36
#4623
9.6M
9.60 mi07:09:101:40:4110:2917:34
10:59
#4531
10M
10.00 mi07:12:041:43:3510:222:54
7:15
#4529
10.5M
10.50 mi07:19:221:50:5310:347:18
14:36
#4518
12M
12.00 mi07:34:302:06:0110:3015:08
10:05
#4469
14M
14.00 mi07:56:162:27:4710:3321:46
10:53
#4332
16M
16.00 mi08:13:082:44:3910:1716:52
8:26
#4082
18M
18.00 mi08:36:383:08:0910:2723:30
11:45
#4083
20M
20.00 mi08:57:183:28:4910:2620:40
10:20
#3923
22M
22.00 mi09:17:553:49:2610:2620:37
10:18
#3860
24M
24.00 mi09:39:274:10:5810:2721:32
10:46
#3707
Finish
26.22 mi10:02:194:33:5010:2722:52
10:18
#3579
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 65%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:12

Segment Time

11:20/mi

Pace

0.90 mi

Distance

Overall

4629

Men

3521

Division

734

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi451034897104236(Top 59%)3298(Top 65%)701(Top 67%)
4M4.00 mi2.00 mi4469+413459+30709+14488(Top 63%)3463(Top 69%)724(Top 70%)
6M6.00 mi2.00 mi4484-153468-9717-84568(Top 64%)3514(Top 70%)729(Top 70%)
8M8.00 mi2.00 mi4623-1393553-85738-215125(Top 72%)3868(Top 77%)803(Top 77%)
9.6M9.60 mi1.60 mi4531+923484+69724+144402(Top 61%)3388(Top 67%)699(Top 67%)
10M10.00 mi0.40 mi4529+23484725-14522(Top 63%)3479(Top 69%)721(Top 69%)
10.5M10.50 mi0.50 mi4518+113470+14720+54807(Top 67%)3619(Top 72%)740(Top 71%)
12M12.00 mi1.50 mi4469+493439+31712+84236(Top 59%)3298(Top 65%)701(Top 67%)
14M14.00 mi2.00 mi4332+1373357+82693+193813(Top 53%)3005(Top 59%)629(Top 60%)
16M16.00 mi2.00 mi4082+2503191+166665+282721(Top 38%)2150(Top 43%)432(Top 42%)
18M18.00 mi2.00 mi4083-13182+9651+144222(Top 59%)3165(Top 63%)639(Top 61%)
20M20.00 mi2.00 mi3923+1603056+126631+202953(Top 41%)2303(Top 46%)475(Top 46%)
22M22.00 mi2.00 mi3860+633000+56613+183492(Top 49%)2626(Top 52%)540(Top 52%)
24M24.00 mi2.00 mi3707+1532876+124597+162596(Top 36%)1961(Top 39%)412(Top 40%)
Finish26.22 mi2.22 mi3579+1282774+102572+252643(Top 37%)1981(Top 39%)398(Top 38%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 59%
×1human
+6ft-11ft

Overall

4236

Males

3298

M30-34

705

2M→4M

2.0 - 4.0 mi

Top 63%
×4stories
+75ft-70ft

Overall

4488

Males

3463

M30-34

728

4M→6M

4.0 - 6.0 mi

Top 64%
×5stories
+71ft-18ft

Overall

4568

Males

3514

M30-34

734

6M→8M

6.0 - 8.0 mi

Top 72%
×9stories
+106ft-21ft

Overall

5125

Males

3868

M30-34

808

8M→9.6M

8.0 - 9.6 mi

Top 61%
×13stories
+117ft-177ft

Overall

4402

Males

3388

M30-34

701

9.6M→10M

9.6 - 10.0 mi

Top 63%
×1story
+17ft-12ft

Overall

4522

Males

3479

M30-34

724

10M→10.5M

10.0 - 10.5 mi

Top 67%
×9stories
+0ft-102ft

Overall

4807

Males

3619

M30-34

743

10.5M→12M

10.5 - 12.0 mi

Top 59%
×18stories
+304ft-125ft

Overall

4236

Males

3298

M30-34

705

12M→14M

12.0 - 14.0 mi

Top 53%
×9stories
+99ft-125ft

Overall

3813

Males

3005

M30-34

632

14M→16M

14.0 - 16.0 mi

Top 38%
×9stories
+124ft-78ft

Overall

2721

Males

2150

M30-34

433

16M→18M

16.0 - 18.0 mi

Top 59%
×8stories
+106ft-45ft

Overall

4222

Males

3165

M30-34

641

18M→20M

18.0 - 20.0 mi

Top 41%
×3stories
+52ft-26ft

Overall

2953

Males

2303

M30-34

477

20M→22M

20.0 - 22.0 mi

Top 49%
×21stories
+17ft-266ft

Overall

3492

Males

2626

M30-34

542

22M→24M

22.0 - 24.0 mi

Top 36%
×3stories
+70ft-85ft

Overall

2596

Males

1961

M30-34

413

24M→Finish

24.0 - 26.2 mi

Top 37%
~flat
+2ft-2ft

Overall

2643

Males

1981

M30-34

398

Passing Analysis

Category:
Athletes Passed
1714*
Passed By
783
Net Change
+931
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4510
2M → 4M171*130+41#4510#4469
4M → 6M130145-15#4469#4484
6M → 8M32*171-139#4484#4623
8M → 9.6M131*39+92#4623#4531
9.6M → 10M1210+2#4531#4529
10M → 10.5M5645+11#4529#4518
10.5M → 12M9748+49#4518#4469
12M → 14M156*19+137#4469#4332
14M → 16M264*14+250#4332#4082
16M → 18M106107-1#4082#4083
18M → 20M164*4+160#4083#3923
20M → 22M88*25+63#3923#3860
22M → 24M168*15+153#3860#3707
24M → Finish139*11+128#3707#3579
TOTALS1714*783+931

* 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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