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SF MARATHON 2026

Britney Tonning

Bib: 8068•F•Age: 38

Denver, CO

0:00
0:00
/ mi
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Overall
#0 / 7166
Gender (Female)
#0 / 2086
Division (F35-39)
#0 / 270
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
22:12
Rank: #5989
Start → 2M
22:12 | 11:06/mi
4M
44:25
Rank: #5841 (+148)
2M → 4M
22:13 | 11:07/mi
6M
1:06:12
Rank: #5568 (+273)
4M → 6M
21:47 | 10:53/mi
8M
1:28:25
Rank: #5624 (-56)
6M → 8M
22:13 | 11:06/mi
9.6M
1:46:51
Rank: #5492 (+132)
8M → 9.6M
18:26 | 11:31/mi
10M
1:49:53
Rank: #5475 (+17)
9.6M → 10M
3:02 | 7:36/mi
10.5M
1:57:18
Rank: #5424 (+51)
10M → 10.5M
7:25 | 14:50/mi
12M
2:14:52
Rank: #5490 (-66)
10.5M → 12M
17:34 | 11:43/mi
14M
2:38:50
Rank: #5411 (+79)
12M → 14M
23:58 | 11:59/mi
16M
2:59:32
Rank: #5358 (+53)
14M → 16M
20:42 | 10:21/mi
18M
3:26:41
Rank: #5430 (-72)
16M → 18M
27:09 | 13:35/mi
20M
3:52:15
Rank: #5461 (-31)
18M → 20M
25:34 | 12:47/mi
22M
4:14:41
Rank: #5392 (+69)
20M → 22M
22:26 | 11:13/mi
24M
4:40:29
Rank: #5331 (+61)
22M → 24M
25:48 | 12:54/mi
Finish· 26.22 mi
5:08:46
Rank: #5317 (+14)
24M → Finish
28:17 | 12:45/mi
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Half Splits

1st Half· via 14M
Distance14.00 mi
Time2:38:50
Pace11:21 /mi
2nd Half✓ Faster
Distance12.22 mi
Time2:29:56
Pace12:16 /mi
📊Negative Split: 5.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:59:1322:1211:0622:12
11:06
-
4M
4.00 mi06:21:2644:2511:0622:13
11:07
+0:01
6M
6.00 mi06:43:131:06:1211:0221:47
10:53
-0:14
8M
8.00 mi07:05:261:28:2511:0322:13
11:06
+0:13
9.6M
9.60 mi07:23:521:46:5111:0818:26
11:31
+0:25
10M
10.00 mi07:26:541:49:5310:593:02
7:36
-3:55
10.5M
10.50 mi07:34:191:57:1811:107:25
14:50
+7:14
12M
12.00 mi07:51:532:14:5211:1417:34
11:43
-3:07
14M
14.00 mi08:15:512:38:5011:2123:58
11:59
+0:16
16M
16.00 mi08:36:332:59:3211:1320:42
10:21
-1:38
18M
18.00 mi09:03:423:26:4111:2927:09
13:35
+3:14
20M
20.00 mi09:29:163:52:1511:3725:34
12:47
-0:48
22M
22.00 mi09:51:424:14:4111:3522:26
11:13
-1:34
24M
24.00 mi10:17:304:40:2911:4125:48
12:54
+1:41
Finish
26.22 mi10:45:475:08:4611:4728:17
12:45
-0:09

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

7:36 /mi

Average Pace

11:47 /mi

Slowest Pace

14:50 /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

23:44

8% of race

Time at Steady Pace

2:50:49

55% of race

Time at Slower Pace

1:54:13

37% of race

Average Pace: 11:47 /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 mi05:59:1322:1211:0622:12
11:06
#5989
4M
4.00 mi06:21:2644:2511:0622:13
11:07
#5841
6M
6.00 mi06:43:131:06:1211:0221:47
10:53
#5568
8M
8.00 mi07:05:261:28:2511:0322:13
11:06
#5624
9.6M
9.60 mi07:23:521:46:5111:0818:26
11:31
#5492
10M
10.00 mi07:26:541:49:5310:593:02
7:36
#5475
10.5M
10.50 mi07:34:191:57:1811:107:25
14:50
#5424
12M
12.00 mi07:51:532:14:5211:1417:34
11:43
#5490
14M
14.00 mi08:15:512:38:5011:2123:58
11:59
#5411
16M
16.00 mi08:36:332:59:3211:1320:42
10:21
#5358
18M
18.00 mi09:03:423:26:4111:2927:09
13:35
#5430
20M
20.00 mi09:29:163:52:1511:3725:34
12:47
#5461
22M
22.00 mi09:51:424:14:4111:3522:26
11:13
#5392
24M
24.00 mi10:17:304:40:2911:4125:48
12:54
#5331
Finish
26.22 mi10:45:475:08:4611:4728:17
12:45
#5317
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 69%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:27

Segment Time

11:37/mi

Pace

0.90 mi

Distance

Overall

4924

Women

1203

Division

148

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
2M2.00 mi2.00 mi598915781915827(Top 81%)1526(Top 73%)191(Top 71%)
4M4.00 mi2.00 mi5841+1481519+59185+65691(Top 79%)1462(Top 70%)178(Top 66%)
6M6.00 mi2.00 mi5568+2731413+106171+145173(Top 72%)1264(Top 61%)149(Top 55%)
8M8.00 mi2.00 mi5624-561437-24177-65879(Top 82%)1510(Top 72%)194(Top 72%)
9.6M9.60 mi1.60 mi5492+1321382+55167+105017(Top 70%)1218(Top 58%)154(Top 57%)
10M10.00 mi0.40 mi5475+171376+61675157(Top 72%)1274(Top 61%)161(Top 60%)
10.5M10.50 mi0.50 mi5424+511358+18160+75005(Top 70%)1247(Top 60%)152(Top 56%)
12M12.00 mi1.50 mi5490-661386-28171-115827(Top 81%)1526(Top 73%)191(Top 71%)
14M14.00 mi2.00 mi5411+791362+24166+55091(Top 71%)1255(Top 60%)152(Top 56%)
16M16.00 mi2.00 mi5358+531353+91664982(Top 70%)1261(Top 60%)160(Top 59%)
18M18.00 mi2.00 mi5430-721387-341665699(Top 80%)1572(Top 75%)192(Top 71%)
20M20.00 mi2.00 mi5461-311405-18169-35531(Top 77%)1540(Top 74%)191(Top 71%)
22M22.00 mi2.00 mi5392+691396+9167+24501(Top 63%)1229(Top 59%)150(Top 56%)
24M24.00 mi2.00 mi5331+611386+10168-14700(Top 66%)1308(Top 63%)159(Top 59%)
Finish26.22 mi2.22 mi5317+141388-21685166(Top 72%)1444(Top 69%)171(Top 63%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 81%
×1human
+6ft-11ft

Overall

5827

Females

1526

F35-39

193

2M→4M

2.0 - 4.0 mi

Top 79%
×4stories
+75ft-70ft

Overall

5691

Females

1462

F35-39

179

4M→6M

4.0 - 6.0 mi

Top 72%
×5stories
+71ft-18ft

Overall

5173

Females

1264

F35-39

150

6M→8M

6.0 - 8.0 mi

Top 82%
×9stories
+106ft-21ft

Overall

5879

Females

1510

F35-39

196

8M→9.6M

8.0 - 9.6 mi

Top 70%
×13stories
+117ft-177ft

Overall

5017

Females

1218

F35-39

156

9.6M→10M

9.6 - 10.0 mi

Top 72%
×1story
+17ft-12ft

Overall

5157

Females

1274

F35-39

163

10M→10.5M

10.0 - 10.5 mi

Top 70%
×9stories
+0ft-102ft

Overall

5005

Females

1247

F35-39

154

10.5M→12M

10.5 - 12.0 mi

Top 81%
×18stories
+304ft-125ft

Overall

5827

Females

1526

F35-39

193

12M→14M

12.0 - 14.0 mi

Top 71%
×9stories
+99ft-125ft

Overall

5091

Females

1255

F35-39

153

14M→16M

14.0 - 16.0 mi

Top 70%
×9stories
+124ft-78ft

Overall

4982

Females

1261

F35-39

161

16M→18M

16.0 - 18.0 mi

Top 80%
×8stories
+106ft-45ft

Overall

5699

Females

1572

F35-39

193

18M→20M

18.0 - 20.0 mi

Top 77%
×3stories
+52ft-26ft

Overall

5531

Females

1540

F35-39

192

20M→22M

20.0 - 22.0 mi

Top 63%
×21stories
+17ft-266ft

Overall

4501

Females

1229

F35-39

150

22M→24M

22.0 - 24.0 mi

Top 66%
×3stories
+70ft-85ft

Overall

4700

Females

1308

F35-39

159

24M→Finish

24.0 - 26.2 mi

Top 72%
~flat
+2ft-2ft

Overall

5166

Females

1444

F35-39

171

Passing Analysis

Category:
Athletes Passed
1452*
Passed By
780
Net Change
+672
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5989
2M → 4M214*66+148#5989#5841
4M → 6M29017+273#5841#5568
6M → 8M65*121-56#5568#5624
8M → 9.6M153*21+132#5624#5492
9.6M → 10M258+17#5492#5475
10M → 10.5M7019+51#5475#5424
10.5M → 12M46112-66#5424#5490
12M → 14M107*28+79#5490#5411
14M → 16M127*74+53#5411#5358
16M → 18M75147-72#5358#5430
18M → 20M46*77-31#5430#5461
20M → 22M89*20+69#5461#5392
22M → 24M93*32+61#5392#5331
24M → Finish52*38+14#5331#5317
TOTALS1452*780+672

* 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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