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SF MARATHON 2026

Don Chung

Bib: 8831•M•Age: 36

Campbell, 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

Start
0:00:00
Race begins
2M
23:54
Rank: #6805
Start → 2M
23:54 | 11:57/mi
4M
47:52
Rank: #6677 (+128)
2M → 4M
23:58 | 11:59/mi
6M
1:11:51
Rank: #6537 (+140)
4M → 6M
23:59 | 11:59/mi
8M
1:35:13
Rank: #6531 (+6)
6M → 8M
23:22 | 11:41/mi
9.6M
1:55:53
Rank: #6475 (+56)
8M → 9.6M
20:40 | 12:55/mi
10M
1:59:41
Rank: #6494 (-19)
9.6M → 10M
3:48 | 9:31/mi
10.5M
2:09:04
Rank: #6539 (-45)
10M → 10.5M
9:23 | 18:46/mi
12M
2:27:39
Rank: #6500 (+39)
10.5M → 12M
18:35 | 12:23/mi
14M
2:54:41
Rank: #6463 (+37)
12M → 14M
27:02 | 13:31/mi
16M
3:16:11
Rank: #6342 (+121)
14M → 16M
21:30 | 10:45/mi
18M
3:46:21
Rank: #6426 (-84)
16M → 18M
30:10 | 15:05/mi
20M
4:11:21
Rank: #6317 (+109)
18M → 20M
25:00 | 12:30/mi
22M
4:34:37
Rank: #6212 (+105)
20M → 22M
23:16 | 11:38/mi
24M
5:02:43
Rank: #6158 (+54)
22M → 24M
28:06 | 14:03/mi
Finish· 26.22 mi
5:30:52
Rank: #6057 (+101)
24M → Finish
28:09 | 12:41/mi

The Course

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Half Splits

1st Half· via 14M
Distance14.00 mi
Time2:54:41
Pace12:29 /mi
2nd Half✓ Faster
Distance12.22 mi
Time2:36:11
Pace12:47 /mi
📊Negative Split: 10.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:01:1523:5411:5723:54
11:57
-
4M
4.00 mi06:25:1347:5211:5823:58
11:59
+0:02
6M
6.00 mi06:49:121:11:5111:5923:59
11:59
0:00
8M
8.00 mi07:12:341:35:1311:5423:22
11:41
-0:18
9.6M
9.60 mi07:33:141:55:5312:0420:40
12:55
+1:14
10M
10.00 mi07:37:021:59:4111:583:48
9:31
-3:24
10.5M
10.50 mi07:46:252:09:0412:189:23
18:46
+9:15
12M
12.00 mi08:05:002:27:3912:1818:35
12:23
-6:23
14M
14.00 mi08:32:022:54:4112:2927:02
13:31
+1:08
16M
16.00 mi08:53:323:16:1112:1621:30
10:45
-2:46
18M
18.00 mi09:23:423:46:2112:3530:10
15:05
+4:20
20M
20.00 mi09:48:424:11:2112:3425:00
12:30
-2:35
22M
22.00 mi10:11:584:34:3712:2923:16
11:38
-0:52
24M
24.00 mi10:40:045:02:4312:3728:06
14:03
+2:25
Finish
26.22 mi11:08:135:30:5212:3828:09
12:41
-1:22

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

9:31 /mi

Average Pace

12:38 /mi

Slowest Pace

18:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:18

8% of race

Time at Steady Pace

3:30:53

64% of race

Time at Slower Pace

1:34:41

29% of race

Average Pace: 12:37 /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 mi06:01:1523:5411:5723:54
11:57
#6805
4M
4.00 mi06:25:1347:5211:5823:58
11:59
#6677
6M
6.00 mi06:49:121:11:5111:5923:59
11:59
#6537
8M
8.00 mi07:12:341:35:1311:5423:22
11:41
#6531
9.6M
9.60 mi07:33:141:55:5312:0420:40
12:55
#6475
10M
10.00 mi07:37:021:59:4111:583:48
9:31
#6494
10.5M
10.50 mi07:46:252:09:0412:189:23
18:46
#6539
12M
12.00 mi08:05:002:27:3912:1818:35
12:23
#6500
14M
14.00 mi08:32:022:54:4112:2927:02
13:31
#6463
16M
16.00 mi08:53:323:16:1112:1621:30
10:45
#6342
18M
18.00 mi09:23:423:46:2112:3530:10
15:05
#6426
20M
20.00 mi09:48:424:11:2112:3425:00
12:30
#6317
22M
22.00 mi10:11:584:34:3712:2923:16
11:38
#6212
24M
24.00 mi10:40:045:02:4312:3728:06
14:03
#6158
Finish
26.22 mi11:08:135:30:5212:3828:09
12:41
#6057
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 93%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:11

Segment Time

14:39/mi

Pace

0.90 mi

Distance

Overall

6699

Men

4777

Division

686

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi680548616826257(Top 87%)4551(Top 90%)641(Top 89%)
4M4.00 mi2.00 mi6677+1284779+82670+126540(Top 91%)4702(Top 93%)652(Top 91%)
6M6.00 mi2.00 mi6537+1404707+72657+136315(Top 88%)4585(Top 91%)640(Top 89%)
8M8.00 mi2.00 mi6531+64719-12658-16475(Top 90%)4718(Top 93%)667(Top 93%)
9.6M9.60 mi1.60 mi6475+564673+46654+46286(Top 88%)4544(Top 90%)636(Top 89%)
10M10.00 mi0.40 mi6494-194685-12658-46851(Top 96%)4890(Top 97%)694(Top 97%)
10.5M10.50 mi0.50 mi6539-454718-33666-86733(Top 94%)4796(Top 95%)682(Top 95%)
12M12.00 mi1.50 mi6500+394694+24658+86257(Top 87%)4551(Top 90%)641(Top 89%)
14M14.00 mi2.00 mi6463+374668+26656+26264(Top 87%)4521(Top 89%)643(Top 90%)
16M16.00 mi2.00 mi6342+1214591+77643+135319(Top 74%)3915(Top 77%)557(Top 78%)
18M18.00 mi2.00 mi6426-844632-41650-76515(Top 91%)4628(Top 92%)665(Top 93%)
20M20.00 mi2.00 mi6317+1094555+77643+75289(Top 74%)3824(Top 76%)549(Top 77%)
22M22.00 mi2.00 mi6212+1054491+64635+84914(Top 69%)3536(Top 70%)512(Top 71%)
24M24.00 mi2.00 mi6158+544450+41630+55655(Top 79%)4016(Top 79%)580(Top 81%)
Finish26.22 mi2.22 mi6057+1014384+66618+125126(Top 72%)3677(Top 73%)531(Top 74%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 87%
×1human
+6ft-11ft

Overall

6257

Males

4551

M35-39

646

2M→4M

2.0 - 4.0 mi

Top 91%
×4stories
+75ft-70ft

Overall

6540

Males

4702

M35-39

659

4M→6M

4.0 - 6.0 mi

Top 88%
×5stories
+71ft-18ft

Overall

6315

Males

4585

M35-39

648

6M→8M

6.0 - 8.0 mi

Top 90%
×9stories
+106ft-21ft

Overall

6475

Males

4718

M35-39

673

8M→9.6M

8.0 - 9.6 mi

Top 88%
×13stories
+117ft-177ft

Overall

6286

Males

4544

M35-39

640

9.6M→10M

9.6 - 10.0 mi

Top 96%
×1story
+17ft-12ft

Overall

6851

Males

4890

M35-39

700

10M→10.5M

10.0 - 10.5 mi

Top 94%
×9stories
+0ft-102ft

Overall

6733

Males

4796

M35-39

688

10.5M→12M

10.5 - 12.0 mi

Top 87%
×18stories
+304ft-125ft

Overall

6257

Males

4551

M35-39

646

12M→14M

12.0 - 14.0 mi

Top 87%
×9stories
+99ft-125ft

Overall

6264

Males

4521

M35-39

645

14M→16M

14.0 - 16.0 mi

Top 74%
×9stories
+124ft-78ft

Overall

5319

Males

3915

M35-39

558

16M→18M

16.0 - 18.0 mi

Top 91%
×8stories
+106ft-45ft

Overall

6515

Males

4628

M35-39

666

18M→20M

18.0 - 20.0 mi

Top 74%
×3stories
+52ft-26ft

Overall

5289

Males

3824

M35-39

550

20M→22M

20.0 - 22.0 mi

Top 69%
×21stories
+17ft-266ft

Overall

4914

Males

3536

M35-39

513

22M→24M

22.0 - 24.0 mi

Top 79%
×3stories
+70ft-85ft

Overall

5655

Males

4016

M35-39

580

24M→Finish

24.0 - 26.2 mi

Top 72%
~flat
+2ft-2ft

Overall

5126

Males

3677

M35-39

531

Passing Analysis

Category:
Athletes Passed
1249*
Passed By
501
Net Change
+748
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#6805
2M → 4M167*39+128#6805#6677
4M → 6M176*36+140#6677#6537
6M → 8M70*64+6#6537#6531
8M → 9.6M87*31+56#6531#6475
9.6M → 10M928-19#6475#6494
10M → 10.5M3378-45#6494#6539
10.5M → 12M6930+39#6539#6500
12M → 14M69*32+37#6500#6463
14M → 16M143*22+121#6463#6342
16M → 18M28*112-84#6342#6426
18M → 20M113*4+109#6426#6317
20M → 22M108*3+105#6317#6212
22M → 24M73*19+54#6212#6158
24M → Finish104*3+101#6158#6057
TOTALS1249*501+748

* 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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