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BOSTON MARATHON 2025

Selina Nordberg

Bib: 23899•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 43%
Division (F55-59)
#0 / 994
Top 22%
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
8:21/mi
25:57
↑ 97↓ 3451.5%
10K· 6.21 mi
8:01/mi
50:50
↑ 79↓ 1380.4%
15K· 9.32 mi
8:18/mi
1:16:38
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:43:34
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:49:24
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:10:55
↑ 66↓ 880.2%
30K· 18.64 mi
9:06/mi
2:39:10
↑ 181↓ 1480.2%
20M
9:11/mi
2:51:39
↑ 64↓ 500.2%
21M
9:41/mi
3:01:20
↑ 106↓ 241.6%
35K· 21.75 mi
8:36/mi
3:07:46
↑ 17↓ 861.7%
23M
9:05/mi
3:19:08
↑ 23↓ 630.6%
24M
8:46/mi
3:27:54
↓ 821.3%
40K· 24.85 mi
9:03/mi
3:35:38
↓ 200.3%
25.2M
9:46/mi
3:39:00
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
3:47:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:24
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time1:58:17
Pace9:01 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2625:578:2125:57
8:21
-
10K
6.21 mi11:49:1950:508:1124:53
8:01
-0:20
15K
9.32 mi12:15:071:16:388:1325:48
8:18
+0:17
20K
12.43 mi12:42:031:43:348:2026:56
8:40
+0:22
Half
13.11 mi12:47:531:49:248:215:50
8:33
-0:07
25K
15.53 mi13:09:242:10:558:2621:31
8:52
+0:19
30K
18.64 mi13:37:392:39:108:3228:15
9:06
+0:14
20M
20.00 mi13:50:082:51:398:3512:29
9:11
+0:05
21M
21.00 mi13:59:493:01:208:389:41
9:41
+0:30
35K
21.75 mi14:06:153:07:468:386:26
8:36
-1:05
23M
23.00 mi14:17:373:19:088:3911:22
9:05
+0:29
24M
24.00 mi14:26:233:27:548:408:46
8:46
-0:19
40K
24.85 mi14:34:073:35:388:417:44
9:03
+0:17
25.2M
25.20 mi14:37:293:39:008:413:22
9:46
+0:43
Finish
26.22 mi14:46:103:47:418:418:41
8:31
-1:15

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

8:01 /mi

Average Pace

8:41 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:19

37% of race

Time at Steady Pace

1:09:29

31% of race

Time at Slower Pace

1:12:53

32% of race

Average Pace: 8:41 /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 mi11:24:2625:578:2125:57
8:21
#19041
10K
6.21 mi11:49:1950:508:1124:53
8:01
#17847
15K
9.32 mi12:15:071:16:388:1325:48
8:18
#17909
20K
12.43 mi12:42:031:43:348:2026:56
8:40
#18214
Half
13.11 mi12:47:531:49:248:215:50
8:33
#18273
25K
15.53 mi13:09:242:10:558:2621:31
8:52
#18462
30K
18.64 mi13:37:392:39:108:3228:15
9:06
#18375
20M
20.00 mi13:50:082:51:398:3512:29
9:11
#18323
21M
21.00 mi13:59:493:01:208:389:41
9:41
#18223
35K
21.75 mi14:06:153:07:468:386:26
8:36
#18132
23M
23.00 mi14:17:373:19:088:3911:22
9:05
#18021
24M
24.00 mi14:26:233:27:548:408:46
8:46
#17919
40K
24.85 mi14:34:073:35:388:417:44
9:03
#17860
25.2M
25.20 mi14:37:293:39:008:413:22
9:46
#17826
Finish
26.22 mi14:46:103:47:418:418:41
8:31
#17760
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi190416932693218094(Top 64%)6376(Top 52%)6376(Top 641%)
10K6.21 mi3.10 mi17847+11946238+6946238+69416564(Top 58%)5460(Top 45%)5460(Top 549%)
15K9.32 mi3.11 mi17909-626271-336271-3318094(Top 64%)6376(Top 52%)6376(Top 641%)
20K12.43 mi3.11 mi18214-3056468-1976468-19719256(Top 68%)7052(Top 58%)7052(Top 709%)
Half13.11 mi0.68 mi18273-596501-336501-3319539(Top 69%)7195(Top 59%)7195(Top 724%)
25K15.53 mi2.42 mi18462-1896614-1136614-11319308(Top 68%)7145(Top 58%)7145(Top 719%)
30K18.64 mi3.11 mi18375+876590+246590+2418160(Top 64%)6669(Top 55%)6669(Top 671%)
20M20.00 mi1.36 mi18323+526597-76597-717739(Top 62%)6551(Top 54%)6551(Top 659%)
21M21.00 mi1.00 mi18223+1006568+296568+2916974(Top 60%)6245(Top 51%)6245(Top 628%)
35K21.75 mi0.75 mi18132+916529+396529+3916107(Top 57%)5850(Top 48%)5850(Top 589%)
23M23.00 mi1.25 mi18021+1116506+236506+2316722(Top 59%)6289(Top 51%)6289(Top 633%)
24M24.00 mi1.00 mi17919+1026479+276479+2716157(Top 57%)6026(Top 49%)6026(Top 606%)
40K24.85 mi0.85 mi17860+596468+116468+1116601(Top 58%)6371(Top 52%)6371(Top 641%)
25.2M25.20 mi0.35 mi17826+346462+66462+615979(Top 56%)6084(Top 50%)6084(Top 612%)
Finish26.22 mi1.02 mi17760+666446+166446+1616383(Top 58%)6243(Top 51%)6243(Top 628%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

18094

Females

6376

F55-59

6376

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16564

Females

5460

F55-59

5460

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

18094

Females

6376

F55-59

6376

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19256

Females

7052

F55-59

7052

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19539

Females

7195

F55-59

7195

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19308

Females

7145

F55-59

7145

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

18160

Females

6669

F55-59

6669

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17739

Females

6551

F55-59

6551

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

16974

Females

6245

F55-59

6245

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16107

Females

5850

F55-59

5850

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16722

Females

6289

F55-59

6289

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16157

Females

6026

F55-59

6026

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16601

Females

6371

F55-59

6371

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15979

Females

6084

F55-59

6084

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16383

Females

6243

F55-59

6243

Passing Analysis

Category:
Athletes Passed
2815
Passed By
1534
Net Change
+1281
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19041
5K → 10K122026+1194#19041#17847
10K → 15K170232-62#17847#17909
15K → 20K99404-305#17909#18214
20K → Half2584-59#18214#18273
Half → 25K110299-189#18273#18462
25K → 30K277190+87#18462#18375
30K → 20M13785+52#18375#18323
20M → 21M14646+100#18323#18223
21M → 35K10110+91#18223#18132
35K → 23M16150+111#18132#18021
23M → 24M13028+102#18021#17919
24M → 40K8526+59#17919#17860
40K → 25.2M4814+34#17860#17826
25.2M → Finish10640+66#17826#17760
TOTALS28151534+1281
📊

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