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SF MARATHON 2026

Christopher Byun

Bib: 5790•M•Age: 35

Littleton, CO

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
21:38
Rank: #5618
Start → 2M
21:38 | 10:49/mi
4M
43:38
Rank: #5574 (+44)
2M → 4M
22:00 | 11:00/mi
6M
1:10:32
Rank: #6351 (-777)
4M → 6M
26:54 | 13:27/mi
8M
1:30:17
Rank: #5930 (+421)
6M → 8M
19:45 | 9:52/mi
9.6M
1:48:31
Rank: #5723 (+207)
8M → 9.6M
18:14 | 11:24/mi
10M
1:51:23
Rank: #5670 (+53)
9.6M → 10M
2:52 | 7:10/mi
10.5M
1:58:52
Rank: #5614 (+56)
10M → 10.5M
7:29 | 14:58/mi
12M
2:14:35
Rank: #5460 (+154)
10.5M → 12M
15:43 | 10:29/mi
14M
2:37:16
Rank: #5260 (+200)
12M → 14M
22:41 | 11:20/mi
16M
2:58:02
Rank: #5238 (+22)
14M → 16M
20:46 | 10:23/mi
18M
3:18:48
Rank: #4885 (+353)
16M → 18M
20:46 | 10:23/mi
20M
3:41:12
Rank: #4751 (+134)
18M → 20M
22:24 | 11:12/mi
22M
4:03:51
Rank: #4752 (-1)
20M → 22M
22:39 | 11:19/mi
24M
4:31:17
Rank: #4837 (-85)
22M → 24M
27:26 | 13:43/mi
Finish· 26.22 mi
5:00:29
Rank: #4973 (-136)
24M → Finish
29:12 | 13:10/mi

Course Map & Elevation

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Half Splits

1st Half· via 14M
Distance14.00 mi
Time2:37:16
Pace11:14 /mi
2nd Half✓ Faster
Distance12.22 mi
Time2:23:13
Pace11:43 /mi
📊Negative Split: 8.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:56:0321:3810:4921:38
10:49
-
4M
4.00 mi06:18:0343:3810:5522:00
11:00
+0:11
6M
6.00 mi06:44:571:10:3211:4526:54
13:27
+2:27
8M
8.00 mi07:04:421:30:1711:1719:45
9:52
-3:35
9.6M
9.60 mi07:22:561:48:3111:1818:14
11:24
+1:32
10M
10.00 mi07:25:481:51:2311:082:52
7:10
-4:14
10.5M
10.50 mi07:33:171:58:5211:197:29
14:58
+7:48
12M
12.00 mi07:49:002:14:3511:1315:43
10:29
-4:29
14M
14.00 mi08:11:412:37:1611:1422:41
11:20
+0:51
16M
16.00 mi08:32:272:58:0211:0820:46
10:23
-0:57
18M
18.00 mi08:53:133:18:4811:0320:46
10:23
0:00
20M
20.00 mi09:15:373:41:1211:0422:24
11:12
+0:49
22M
22.00 mi09:38:164:03:5111:0522:39
11:19
+0:07
24M
24.00 mi10:05:424:31:1711:1827:26
13:43
+2:24
Finish
26.22 mi10:34:545:00:2911:2829:12
13:10
-0:33

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

7:10 /mi

Average Pace

11:28 /mi

Slowest Pace

14:58 /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

22:37

8% of race

Time at Steady Pace

3:06:51

62% of race

Time at Slower Pace

1:31:01

30% of race

Average Pace: 11:28 /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 mi05:56:0321:3810:4921:38
10:49
#5618
4M
4.00 mi06:18:0343:3810:5522:00
11:00
#5574
6M
6.00 mi06:44:571:10:3211:4526:54
13:27
#6351
8M
8.00 mi07:04:421:30:1711:1719:45
9:52
#5930
9.6M
9.60 mi07:22:561:48:3111:1818:14
11:24
#5723
10M
10.00 mi07:25:481:51:2311:082:52
7:10
#5670
10.5M
10.50 mi07:33:171:58:5211:197:29
14:58
#5614
12M
12.00 mi07:49:002:14:3511:1315:43
10:29
#5460
14M
14.00 mi08:11:412:37:1611:1422:41
11:20
#5260
16M
16.00 mi08:32:272:58:0211:0820:46
10:23
#5238
18M
18.00 mi08:53:133:18:4811:0320:46
10:23
#4885
20M
20.00 mi09:15:373:41:1211:0422:24
11:12
#4751
22M
22.00 mi09:38:164:03:5111:0522:39
11:19
#4752
24M
24.00 mi10:05:424:31:1711:1827:26
13:43
#4837
Finish
26.22 mi10:34:545:00:2911:2829:12
13:10
#4973
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 67%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:21

Segment Time

11:30/mi

Pace

0.90 mi

Distance

Overall

4811

Men

3639

Division

514

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi561841575694654(Top 65%)3552(Top 70%)490(Top 68%)
4M4.00 mi2.00 mi5574+444125+32564+55563(Top 78%)4124(Top 82%)567(Top 79%)
6M6.00 mi2.00 mi6351-7774597-472638-746943(Top 97%)4930(Top 98%)691(Top 96%)
8M8.00 mi2.00 mi5930+4214348+249597+414002(Top 56%)3167(Top 63%)434(Top 61%)
9.6M9.60 mi1.60 mi5723+2074231+117582+154890(Top 68%)3696(Top 73%)512(Top 71%)
10M10.00 mi0.40 mi5670+534196+35579+34385(Top 61%)3389(Top 67%)476(Top 66%)
10.5M10.50 mi0.50 mi5614+564164+32575+45118(Top 71%)3811(Top 75%)540(Top 75%)
12M12.00 mi1.50 mi5460+1544067+97563+124654(Top 65%)3552(Top 70%)490(Top 68%)
14M14.00 mi2.00 mi5260+2003942+125551+124403(Top 61%)3377(Top 67%)474(Top 66%)
16M16.00 mi2.00 mi5238+223913+29549+25009(Top 70%)3716(Top 74%)526(Top 73%)
18M18.00 mi2.00 mi4885+3533679+234515+342757(Top 38%)2191(Top 43%)303(Top 42%)
20M20.00 mi2.00 mi4751+1343587+92509+63999(Top 56%)2979(Top 59%)431(Top 60%)
22M22.00 mi2.00 mi4752-13575+12512-34630(Top 65%)3346(Top 66%)484(Top 68%)
24M24.00 mi2.00 mi4837-853613-38519-75386(Top 75%)3827(Top 76%)559(Top 78%)
Finish26.22 mi2.22 mi4973-1363688-75530-115499(Top 77%)3919(Top 78%)569(Top 79%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 65%
×1human
+6ft-11ft

Overall

4654

Males

3552

M35-39

493

2M→4M

2.0 - 4.0 mi

Top 78%
×4stories
+75ft-70ft

Overall

5563

Males

4124

M35-39

574

4M→6M

4.0 - 6.0 mi

Top 97%
×5stories
+71ft-18ft

Overall

6943

Males

4930

M35-39

699

6M→8M

6.0 - 8.0 mi

Top 56%
×9stories
+106ft-21ft

Overall

4002

Males

3167

M35-39

437

8M→9.6M

8.0 - 9.6 mi

Top 68%
×13stories
+117ft-177ft

Overall

4890

Males

3696

M35-39

515

9.6M→10M

9.6 - 10.0 mi

Top 61%
×1story
+17ft-12ft

Overall

4385

Males

3389

M35-39

479

10M→10.5M

10.0 - 10.5 mi

Top 71%
×9stories
+0ft-102ft

Overall

5118

Males

3811

M35-39

543

10.5M→12M

10.5 - 12.0 mi

Top 65%
×18stories
+304ft-125ft

Overall

4654

Males

3552

M35-39

493

12M→14M

12.0 - 14.0 mi

Top 61%
×9stories
+99ft-125ft

Overall

4403

Males

3377

M35-39

475

14M→16M

14.0 - 16.0 mi

Top 70%
×9stories
+124ft-78ft

Overall

5009

Males

3716

M35-39

527

16M→18M

16.0 - 18.0 mi

Top 38%
×8stories
+106ft-45ft

Overall

2757

Males

2191

M35-39

303

18M→20M

18.0 - 20.0 mi

Top 56%
×3stories
+52ft-26ft

Overall

3999

Males

2979

M35-39

432

20M→22M

20.0 - 22.0 mi

Top 65%
×21stories
+17ft-266ft

Overall

4630

Males

3346

M35-39

485

22M→24M

22.0 - 24.0 mi

Top 75%
×3stories
+70ft-85ft

Overall

5386

Males

3827

M35-39

559

24M→Finish

24.0 - 26.2 mi

Top 77%
~flat
+2ft-2ft

Overall

5499

Males

3919

M35-39

569

Passing Analysis

Category:
Athletes Passed
2055*
Passed By
1410
Net Change
+645
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5618
2M → 4M157*113+44#5618#5574
4M → 6M26803-777#5574#6351
6M → 8M423*2+421#6351#5930
8M → 9.6M214*7+207#5930#5723
9.6M → 10M541+53#5723#5670
10M → 10.5M7014+56#5670#5614
10.5M → 12M16915+154#5614#5460
12M → 14M209*9+200#5460#5260
14M → 16M118*96+22#5260#5238
16M → 18M3574+353#5238#4885
18M → 20M147*13+134#4885#4751
20M → 22M55*56-1#4751#4752
22M → 24M27*112-85#4752#4837
24M → Finish29*165-136#4837#4973
TOTALS2055*1410+645

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

📊

Passing Visuals

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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