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BOSTON MARATHON 2025

Siobhan Mitchell

Bib: 10974•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:53/mi
21:24
↑ 97↓ 3451.5%
10K· 6.21 mi
6:45/mi
42:22
↑ 79↓ 1380.4%
15K· 9.32 mi
6:42/mi
1:03:12
↑ 67↓ 78
20K· 12.43 mi
6:39/mi
1:23:51
↑ 106↓ 860.1%
Half· 13.11 mi
6:30/mi
1:28:17
↑ 19↓ 370.5%
25K· 15.53 mi
6:38/mi
1:44:22
↑ 66↓ 880.2%
30K· 18.64 mi
6:50/mi
2:05:35
↑ 181↓ 1480.2%
20M
6:45/mi
2:14:46
↑ 64↓ 500.2%
21M
7:03/mi
2:21:49
↑ 106↓ 241.6%
35K· 21.75 mi
6:24/mi
2:26:36
↑ 17↓ 861.7%
23M
6:41/mi
2:34:58
↑ 23↓ 630.6%
24M
6:31/mi
2:41:29
↓ 821.3%
40K· 24.85 mi
6:33/mi
2:47:05
↓ 200.3%
25.2M
7:12/mi
2:49:34
↑ 13↓ 160.2%
Finish· 26.22 mi
6:27/mi
2:56:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:17
Pace6:44 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:51
Pace6:42 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0321:246:5321:24
6:53
-
10K
6.21 mi11:09:0142:226:4920:58
6:45
-0:08
15K
9.32 mi11:29:511:03:126:4720:50
6:42
-0:03
20K
12.43 mi11:50:301:23:516:4520:39
6:39
-0:03
Half
13.11 mi11:54:561:28:176:444:26
6:30
-0:09
25K
15.53 mi12:11:011:44:226:4316:05
6:38
+0:08
30K
18.64 mi12:32:142:05:356:4421:13
6:50
+0:12
20M
20.00 mi12:41:252:14:466:449:11
6:45
-0:05
21M
21.00 mi12:48:282:21:496:457:03
7:03
+0:18
35K
21.75 mi12:53:152:26:366:444:47
6:24
-0:39
23M
23.00 mi13:01:372:34:586:448:22
6:41
+0:17
24M
24.00 mi13:08:082:41:296:446:31
6:31
-0:10
40K
24.85 mi13:13:442:47:056:435:36
6:33
+0:02
25.2M
25.20 mi13:16:132:49:346:442:29
7:12
+0:39
Finish
26.22 mi13:22:472:56:086:436:34
6:27
-0:45

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

6:24 /mi

Average Pace

6:43 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:36

95% of race

Time at Steady Pace

9:32

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:43 /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
5K
3.11 mi10:48:0321:246:5321:24
6:53
#6979
10K
6.21 mi11:09:0142:226:4920:58
6:45
#6493
15K
9.32 mi11:29:511:03:126:4720:50
6:42
#6013
20K
12.43 mi11:50:301:23:516:4520:39
6:39
#5452
Half
13.11 mi11:54:561:28:176:444:26
6:30
#5320
25K
15.53 mi12:11:011:44:226:4316:05
6:38
#4963
30K
18.64 mi12:32:142:05:356:4421:13
6:50
#4627
20M
20.00 mi12:41:252:14:466:449:11
6:45
#4415
21M
21.00 mi12:48:282:21:496:457:03
7:03
#4224
35K
21.75 mi12:53:152:26:366:444:47
6:24
#4113
23M
23.00 mi13:01:372:34:586:448:22
6:41
#3932
24M
24.00 mi13:08:082:41:296:446:31
6:31
#3806
40K
24.85 mi13:13:442:47:056:435:36
6:33
#3674
25.2M
25.20 mi13:16:132:49:346:442:29
7:12
#3615
Finish
26.22 mi13:22:472:56:086:436:34
6:27
#3524
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi69796766765144(Top 18%)366(Top 3%)366(Top 7%)
10K6.21 mi3.10 mi6493+486570+106570+1065847(Top 21%)480(Top 4%)480(Top 9%)
15K9.32 mi3.11 mi6013+480492+78492+785144(Top 18%)366(Top 3%)366(Top 7%)
20K12.43 mi3.11 mi5452+561410+82410+824002(Top 14%)232(Top 2%)232(Top 4%)
Half13.11 mi0.68 mi5320+132388+22388+223733(Top 13%)200(Top 2%)200(Top 4%)
25K15.53 mi2.42 mi4963+357345+43345+433698(Top 13%)213(Top 2%)213(Top 4%)
30K18.64 mi3.11 mi4627+336314+31314+313638(Top 13%)257(Top 2%)257(Top 5%)
20M20.00 mi1.36 mi4415+212290+24290+242742(Top 10%)164(Top 1%)164(Top 3%)
21M21.00 mi1.00 mi4224+191276+14276+142489(Top 9%)160(Top 1%)160(Top 3%)
35K21.75 mi0.75 mi4113+111269+7269+72044(Top 7%)123(Top 1%)123(Top 2%)
23M23.00 mi1.25 mi3932+181254+15254+152203(Top 8%)139(Top 1%)139(Top 3%)
24M24.00 mi1.00 mi3806+126242+12242+122145(Top 8%)148(Top 1%)148(Top 3%)
40K24.85 mi0.85 mi3674+132236+6236+61824(Top 6%)135(Top 1%)135(Top 2%)
25.2M25.20 mi0.35 mi3615+59234+2234+22222(Top 8%)215(Top 2%)215(Top 4%)
Finish26.22 mi1.02 mi3524+91228+6228+62559(Top 9%)227(Top 2%)227(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21story building
+97ft-345ft

Overall

5144

Females

366

F18-39

366

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5847

Females

480

F18-39

480

10K→15K

6.2 - 9.3 mi

Top 18%
×3story building
+67ft-78ft

Overall

5144

Females

366

F18-39

366

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

4002

Females

232

F18-39

232

20K→Half

12.4 - 13.1 mi

Top 13%
×2story building
+19ft-37ft

Overall

3733

Females

200

F18-39

200

Half→25K

13.1 - 15.5 mi

Top 13%
×4story building
+66ft-88ft

Overall

3698

Females

213

F18-39

213

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3638

Females

257

F18-39

257

30K→20M

18.6 - 20.0 mi

Top 10%
×5story building
+64ft-50ft

Overall

2742

Females

164

F18-39

164

20M→21M

20.0 - 21.0 mi

Top 9%
×8story building
+106ft-24ft

Overall

2489

Females

160

F18-39

160

21M→35K

21.0 - 21.8 mi

Top 7%
×7story building
+17ft-86ft

Overall

2044

Females

123

F18-39

123

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2203

Females

139

F18-39

139

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2145

Females

148

F18-39

148

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1824

Females

135

F18-39

135

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2222

Females

215

F18-39

215

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2story building
+22ft-21ft

Overall

2559

Females

227

F18-39

227

Passing Analysis

Category:
Athletes Passed
3565
Passed By
110
Net Change
+3455
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6979
5K → 10K51933+486#6979#6493
10K → 15K49515+480#6493#6013
15K → 20K5643+561#6013#5452
20K → Half1331+132#5452#5320
Half → 25K3581+357#5320#4963
25K → 30K36428+336#4963#4627
30K → 20M2153+212#4627#4415
20M → 21M1954+191#4415#4224
21M → 35K1121+111#4224#4113
35K → 23M1821+181#4113#3932
23M → 24M1315+126#3932#3806
24M → 40K1342+132#3806#3674
40K → 25.2M601+59#3674#3615
25.2M → Finish10312+91#3615#3524
TOTALS3565110+3455
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing