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SF MARATHON 2026

Johnathan Siu

Bib: 8380•M•Age: 35

Hercules, CA

0:00
0:00
/ mi
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Overall
#0 / 7166
Gender (Male)
#0 / 5052
Division (M35-39)
#0 / 717
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
2M
21:13
Rank: #5335
Start → 2M
21:13 | 10:36/mi
4M
42:56
Rank: #5324 (+11)
2M → 4M
21:43 | 10:52/mi
6M
1:06:06
Rank: #5538 (-214)
4M → 6M
23:10 | 11:35/mi
8M
1:28:04
Rank: #5565 (-27)
6M → 8M
21:58 | 10:59/mi
9.6M
1:47:54
Rank: #5631 (-66)
8M → 9.6M
19:50 | 12:24/mi
10M
1:50:49
Rank: #5596 (+35)
9.6M → 10M
2:55 | 7:18/mi
10.5M
1:57:52
Rank: #5492 (+104)
10M → 10.5M
7:03 | 14:06/mi
12M
2:15:12
Rank: #5525 (-33)
10.5M → 12M
17:20 | 11:33/mi
14M
2:38:51
Rank: #5417 (+108)
12M → 14M
23:39 | 11:49/mi
16M
2:58:45
Rank: #5296 (+121)
14M → 16M
19:54 | 9:57/mi
18M
3:25:18
Rank: #5352 (-56)
16M → 18M
26:33 | 13:17/mi
20M
3:48:40
Rank: #5259 (+93)
18M → 20M
23:22 | 11:41/mi
22M
4:10:32
Rank: #5151 (+108)
20M → 22M
21:52 | 10:56/mi
24M
4:36:56
Rank: #5153 (-2)
22M → 24M
26:24 | 13:12/mi
Finish· 26.22 mi
5:06:09
Rank: #5219 (-66)
24M → Finish
29:13 | 13:10/mi
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Half Splits

1st Half· via 14M
Distance14.00 mi
Time2:38:51
Pace11:21 /mi
2nd Half✓ Faster
Distance12.22 mi
Time2:27:18
Pace12:03 /mi
📊Negative Split: 7.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:55:4421:1310:3621:13
10:36
-
4M
4.00 mi06:17:2742:5610:4421:43
10:52
+0:16
6M
6.00 mi06:40:371:06:0611:0123:10
11:35
+0:43
8M
8.00 mi07:02:351:28:0411:0021:58
10:59
-0:36
9.6M
9.60 mi07:22:251:47:5411:1419:50
12:24
+1:25
10M
10.00 mi07:25:201:50:4911:052:55
7:18
-5:06
10.5M
10.50 mi07:32:231:57:5211:147:03
14:06
+6:48
12M
12.00 mi07:49:432:15:1211:1617:20
11:33
-2:33
14M
14.00 mi08:13:222:38:5111:2123:39
11:49
+0:16
16M
16.00 mi08:33:162:58:4511:1019:54
9:57
-1:52
18M
18.00 mi08:59:493:25:1811:2426:33
13:17
+3:20
20M
20.00 mi09:23:113:48:4011:2623:22
11:41
-1:36
22M
22.00 mi09:45:034:10:3211:2321:52
10:56
-0:45
24M
24.00 mi10:11:274:36:5611:3226:24
13:12
+2:16
Finish
26.22 mi10:40:405:06:0911:4129:13
13:10
-0:02

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:18 /mi

Average Pace

11:41 /mi

Slowest Pace

14:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

44:02

14% of race

Time at Steady Pace

2:33:04

50% of race

Time at Slower Pace

1:49:03

36% of race

Average Pace: 11:41 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi05:55:4421:1310:3621:13
10:36
#5335
4M
4.00 mi06:17:2742:5610:4421:43
10:52
#5324
6M
6.00 mi06:40:371:06:0611:0123:10
11:35
#5538
8M
8.00 mi07:02:351:28:0411:0021:58
10:59
#5565
9.6M
9.60 mi07:22:251:47:5411:1419:50
12:24
#5631
10M
10.00 mi07:25:201:50:4911:052:55
7:18
#5596
10.5M
10.50 mi07:32:231:57:5211:147:03
14:06
#5492
12M
12.00 mi07:49:432:15:1211:1617:20
11:33
#5525
14M
14.00 mi08:13:222:38:5111:2123:39
11:49
#5417
16M
16.00 mi08:33:162:58:4511:1019:54
9:57
#5296
18M
18.00 mi08:59:493:25:1811:2426:33
13:17
#5352
20M
20.00 mi09:23:113:48:4011:2623:22
11:41
#5259
22M
22.00 mi09:45:034:10:3211:2321:52
10:56
#5151
24M
24.00 mi10:11:274:36:5611:3226:24
13:12
#5153
Finish
26.22 mi10:40:405:06:0911:4129:13
13:10
#5219
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 60%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:58

Segment Time

11:05/mi

Pace

0.90 mi

Distance

Overall

4313

Men

3326

Division

462

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi533539865465691(Top 79%)4190(Top 83%)582(Top 81%)
4M4.00 mi2.00 mi5324+113974+12547-15389(Top 75%)4014(Top 79%)554(Top 77%)
6M6.00 mi2.00 mi5538-2144118-144565-186008(Top 84%)4400(Top 87%)610(Top 85%)
8M8.00 mi2.00 mi5565-274127-9570-55710(Top 80%)4231(Top 84%)593(Top 83%)
9.6M9.60 mi1.60 mi5631-664176-49578-85899(Top 82%)4313(Top 85%)606(Top 85%)
10M10.00 mi0.40 mi5596+354152+24575+34654(Top 65%)3551(Top 70%)493(Top 69%)
10.5M10.50 mi0.50 mi5492+1044087+65565+104361(Top 61%)3345(Top 66%)464(Top 65%)
12M12.00 mi1.50 mi5525-334096-9569-45691(Top 79%)4190(Top 83%)582(Top 81%)
14M14.00 mi2.00 mi5417+1084028+68561+84908(Top 68%)3692(Top 73%)518(Top 72%)
16M16.00 mi2.00 mi5296+1213942+86556+54607(Top 64%)3474(Top 69%)496(Top 69%)
18M18.00 mi2.00 mi5352-563968-26558-25495(Top 77%)3982(Top 79%)558(Top 78%)
20M20.00 mi2.00 mi5259+933898+70552+64546(Top 63%)3328(Top 66%)478(Top 67%)
22M22.00 mi2.00 mi5151+1083819+79541+114196(Top 59%)3049(Top 60%)437(Top 61%)
24M24.00 mi2.00 mi5153-23809+10543-24949(Top 69%)3538(Top 70%)515(Top 72%)
Finish26.22 mi2.22 mi5219-663845-36548-55507(Top 77%)3925(Top 78%)571(Top 80%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 79%
×1human
+6ft-11ft

Overall

5691

Males

4190

M35-39

586

2M→4M

2.0 - 4.0 mi

Top 75%
×4stories
+75ft-70ft

Overall

5389

Males

4014

M35-39

561

4M→6M

4.0 - 6.0 mi

Top 84%
×5stories
+71ft-18ft

Overall

6008

Males

4400

M35-39

618

6M→8M

6.0 - 8.0 mi

Top 80%
×9stories
+106ft-21ft

Overall

5710

Males

4231

M35-39

596

8M→9.6M

8.0 - 9.6 mi

Top 82%
×13stories
+117ft-177ft

Overall

5899

Males

4313

M35-39

610

9.6M→10M

9.6 - 10.0 mi

Top 65%
×1story
+17ft-12ft

Overall

4654

Males

3551

M35-39

496

10M→10.5M

10.0 - 10.5 mi

Top 61%
×9stories
+0ft-102ft

Overall

4361

Males

3345

M35-39

467

10.5M→12M

10.5 - 12.0 mi

Top 79%
×18stories
+304ft-125ft

Overall

5691

Males

4190

M35-39

586

12M→14M

12.0 - 14.0 mi

Top 68%
×9stories
+99ft-125ft

Overall

4908

Males

3692

M35-39

519

14M→16M

14.0 - 16.0 mi

Top 64%
×9stories
+124ft-78ft

Overall

4607

Males

3474

M35-39

497

16M→18M

16.0 - 18.0 mi

Top 77%
×8stories
+106ft-45ft

Overall

5495

Males

3982

M35-39

559

18M→20M

18.0 - 20.0 mi

Top 63%
×3stories
+52ft-26ft

Overall

4546

Males

3328

M35-39

479

20M→22M

20.0 - 22.0 mi

Top 59%
×21stories
+17ft-266ft

Overall

4196

Males

3049

M35-39

438

22M→24M

22.0 - 24.0 mi

Top 69%
×3stories
+70ft-85ft

Overall

4949

Males

3538

M35-39

515

24M→Finish

24.0 - 26.2 mi

Top 77%
~flat
+2ft-2ft

Overall

5507

Males

3925

M35-39

571

Passing Analysis

Category:
Athletes Passed
1289*
Passed By
1173
Net Change
+116
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5335
2M → 4M163*152+11#5335#5324
4M → 6M92306-214#5324#5538
6M → 8M69*96-27#5538#5565
8M → 9.6M64*130-66#5565#5631
9.6M → 10M383+35#5631#5596
10M → 10.5M11410+104#5596#5492
10.5M → 12M5487-33#5492#5525
12M → 14M124*16+108#5525#5417
14M → 16M158*37+121#5417#5296
16M → 18M82138-56#5296#5352
18M → 20M119*26+93#5352#5259
20M → 22M119*11+108#5259#5151
22M → 24M56*58-2#5151#5153
24M → Finish37*103-66#5153#5219
TOTALS1289*1173+116

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

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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