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SF MARATHON 2026

Nathanael Shim

Bib: 4507•M•Age: 28

Alameda, CA

0:00
0:00
/ mi
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Overall
#0 / 7166
Gender (Male)
#0 / 5052
Division (M25-29)
#0 / 1176
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
21:51
Rank: #5770
Start → 2M
21:51 | 10:55/mi
4M
46:45
Rank: #6454 (-684)
2M → 4M
24:54 | 12:27/mi
6M
1:07:57
Rank: #5933 (+521)
4M → 6M
21:12 | 10:36/mi
8M
1:28:38
Rank: #5664 (+269)
6M → 8M
20:41 | 10:20/mi
9.6M
1:46:54
Rank: #5496 (+168)
8M → 9.6M
18:16 | 11:25/mi
10M
1:49:51
Rank: #5470 (+26)
9.6M → 10M
2:57 | 7:23/mi
10.5M
1:57:15
Rank: #5419 (+51)
10M → 10.5M
7:24 | 14:48/mi
12M
2:12:03
Rank: #5184 (+235)
10.5M → 12M
14:48 | 9:52/mi
14M
2:36:00
Rank: #5142 (+42)
12M → 14M
23:57 | 11:58/mi
16M
3:01:57
Rank: #5542 (-400)
14M → 16M
25:57 | 12:58/mi
18M
3:27:53
Rank: #5514 (+28)
16M → 18M
25:56 | 12:58/mi
20M
4:01:14
Rank: #5920 (-406)
18M → 20M
33:21 | 16:40/mi
22M
4:51:15
Rank: #6708 (-788)
20M → 22M
50:01 | 25:00/mi
24M
5:24:18
Rank: #6742 (-34)
22M → 24M
33:03 | 16:32/mi
Finish· 26.22 mi
6:03:02
Rank: #6811 (-69)
24M → Finish
38:44 | 17:27/mi

Course Map & Elevation

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Half Splits

1st Half· via 14MFaster
Distance14.00 mi
Time2:36:00
Pace11:09 /mi
2nd Half
Distance12.22 mi
Time3:27:02
Pace16:57 /mi
📊Positive Split: 32.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:44:4621:5110:5521:51
10:55
-
4M
4.00 mi06:09:4046:4511:4124:54
12:27
+1:32
6M
6.00 mi06:30:521:07:5711:2021:12
10:36
-1:51
8M
8.00 mi06:51:331:28:3811:0520:41
10:20
-0:16
9.6M
9.60 mi07:09:491:46:5411:0818:16
11:25
+1:05
10M
10.00 mi07:12:461:49:5110:592:57
7:23
-4:02
10.5M
10.50 mi07:20:101:57:1511:107:24
14:48
+7:25
12M
12.00 mi07:34:582:12:0311:0014:48
9:52
-4:56
14M
14.00 mi07:58:552:36:0011:0923:57
11:58
+2:06
16M
16.00 mi08:24:523:01:5711:2225:57
12:58
+1:00
18M
18.00 mi08:50:483:27:5311:3325:56
12:58
0:00
20M
20.00 mi09:24:094:01:1412:0433:21
16:40
+3:42
22M
22.00 mi10:14:104:51:1513:1450:01
25:00
+8:20
24M
24.00 mi10:47:135:24:1813:3133:03
16:32
-8:28
Finish
26.22 mi11:25:576:03:0213:5138:44
17:27
+0:55

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

7:23 /mi

Average Pace

13:51 /mi

Slowest Pace

25:00 /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

38:26

11% of race

Time at Steady Pace

2:42:03

45% of race

Time at Slower Pace

2:42:33

45% of race

Average Pace: 13:51 /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 mi05:44:4621:5110:5521:51
10:55
#5770
4M
4.00 mi06:09:4046:4511:4124:54
12:27
#6454
6M
6.00 mi06:30:521:07:5711:2021:12
10:36
#5933
8M
8.00 mi06:51:331:28:3811:0520:41
10:20
#5664
9.6M
9.60 mi07:09:491:46:5411:0818:16
11:25
#5496
10M
10.00 mi07:12:461:49:5110:592:57
7:23
#5470
10.5M
10.50 mi07:20:101:57:1511:107:24
14:48
#5419
12M
12.00 mi07:34:582:12:0311:0014:48
9:52
#5184
14M
14.00 mi07:58:552:36:0011:0923:57
11:58
#5142
16M
16.00 mi08:24:523:01:5711:2225:57
12:58
#5542
18M
18.00 mi08:50:483:27:5311:3325:56
12:58
#5514
20M
20.00 mi09:24:094:01:1412:0433:21
16:40
#5920
22M
22.00 mi10:14:104:51:1513:1450:01
25:00
#6708
24M
24.00 mi10:47:135:24:1813:3133:03
16:32
#6742
Finish
26.22 mi11:25:576:03:0213:5138:44
17:27
#6811
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

4820

Men

3644

Division

891

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi5770425810043992(Top 56%)3133(Top 62%)790(Top 67%)
4M4.00 mi2.00 mi6454-6844660-4021085-816806(Top 95%)4860(Top 96%)1128(Top 96%)
6M6.00 mi2.00 mi5933+5214351+3091036+494755(Top 66%)3628(Top 72%)884(Top 75%)
8M8.00 mi2.00 mi5664+2694191+1601007+294743(Top 66%)3635(Top 72%)887(Top 75%)
9.6M9.60 mi1.60 mi5496+1684091+100984+234912(Top 69%)3711(Top 73%)908(Top 77%)
10M10.00 mi0.40 mi5470+264074+17982+24821(Top 67%)3657(Top 72%)879(Top 75%)
10.5M10.50 mi0.50 mi5419+514043+31975+74986(Top 70%)3729(Top 74%)901(Top 77%)
12M12.00 mi1.50 mi5184+2353899+144945+303992(Top 56%)3133(Top 62%)790(Top 67%)
14M14.00 mi2.00 mi5142+423866+33941+45079(Top 71%)3805(Top 75%)933(Top 79%)
16M16.00 mi2.00 mi5542-4004100-234992-516610(Top 92%)4707(Top 93%)1107(Top 94%)
18M18.00 mi2.00 mi5514+284076+24989+35269(Top 74%)3838(Top 76%)924(Top 79%)
20M20.00 mi2.00 mi5920-4064322-2461030-417014(Top 98%)4947(Top 98%)1154(Top 98%)
22M22.00 mi2.00 mi6708-7884787-4651132-1027177(Top 100%)5059(Top 100%)1175(Top 100%)
24M24.00 mi2.00 mi6742-344804-171137-56789(Top 95%)4792(Top 95%)1122(Top 95%)
Finish26.22 mi2.22 mi6811-694844-401147-106977(Top 97%)4930(Top 98%)1144(Top 97%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 56%
×1human
+6ft-11ft

Overall

3992

Males

3133

M25-29

794

2M→4M

2.0 - 4.0 mi

Top 95%
×4stories
+75ft-70ft

Overall

6806

Males

4860

M25-29

1138

4M→6M

4.0 - 6.0 mi

Top 66%
×5stories
+71ft-18ft

Overall

4755

Males

3628

M25-29

889

6M→8M

6.0 - 8.0 mi

Top 66%
×9stories
+106ft-21ft

Overall

4743

Males

3635

M25-29

893

8M→9.6M

8.0 - 9.6 mi

Top 69%
×13stories
+117ft-177ft

Overall

4912

Males

3711

M25-29

913

9.6M→10M

9.6 - 10.0 mi

Top 67%
×1story
+17ft-12ft

Overall

4821

Males

3657

M25-29

886

10M→10.5M

10.0 - 10.5 mi

Top 70%
×9stories
+0ft-102ft

Overall

4986

Males

3729

M25-29

907

10.5M→12M

10.5 - 12.0 mi

Top 56%
×18stories
+304ft-125ft

Overall

3992

Males

3133

M25-29

794

12M→14M

12.0 - 14.0 mi

Top 71%
×9stories
+99ft-125ft

Overall

5079

Males

3805

M25-29

937

14M→16M

14.0 - 16.0 mi

Top 92%
×9stories
+124ft-78ft

Overall

6610

Males

4707

M25-29

1110

16M→18M

16.0 - 18.0 mi

Top 74%
×8stories
+106ft-45ft

Overall

5269

Males

3838

M25-29

927

18M→20M

18.0 - 20.0 mi

Top 98%
×3stories
+52ft-26ft

Overall

7014

Males

4947

M25-29

1156

20M→22M

20.0 - 22.0 mi

Top 100%
×21stories
+17ft-266ft

Overall

7177

Males

5059

M25-29

1178

22M→24M

22.0 - 24.0 mi

Top 95%
×3stories
+70ft-85ft

Overall

6789

Males

4792

M25-29

1123

24M→Finish

24.0 - 26.2 mi

Top 97%
~flat
+2ft-2ft

Overall

6977

Males

4930

M25-29

1144

Passing Analysis

Category:
Athletes Passed
1596*
Passed By
2637
Net Change
-1041
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5770
2M → 4M19*703-684#5770#6454
4M → 6M525*4+521#6454#5933
6M → 8M282*13+269#5933#5664
8M → 9.6M183*15+168#5664#5496
9.6M → 10M315+26#5496#5470
10M → 10.5M6817+51#5470#5419
10.5M → 12M2372+235#5419#5184
12M → 14M92*50+42#5184#5142
14M → 16M15*415-400#5142#5542
16M → 18M110*82+28#5542#5514
18M → 20M8*414-406#5514#5920
20M → 22M2*790-788#5920#6708
22M → 24M12*46-34#6708#6742
24M → Finish12*81-69#6742#6811
TOTALS1596*2637-1041

* 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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